Abstract

This Letter describes the fabrication and operation of a single-chip white-laser device. The laser device has a multilayered structure consisting of three laser layers. Each laser layer comprises polymer claddings and a waveguide core doped with organic dye. In each laser layer, grating corrugations were fabricated by UV-nanoimprint lithography that act as distributed-feedback cavity structures. Under optical pumping, lasing output with red, green, and blue colors was simultaneously obtained from the sample edge.

© 2010 Optical Society of America

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  1. Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
    [CrossRef]
  2. Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
    [CrossRef]
  3. S. Balslev and A. Kristensen, Opt. Express 13, 344 (2005).
    [CrossRef] [PubMed]
  4. Z. Li and D. Psaltis, IEEE J. Sel. Top. Quantum Electron. 13, 185 (2007).
    [CrossRef]
  5. Y. Sun, J. D. Suter, and X. Fan, Opt. Lett. 34, 1042 (2009).
    [CrossRef] [PubMed]
  6. M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
    [CrossRef]
  7. K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
    [CrossRef]
  8. Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
    [CrossRef]
  9. F. Cornacchia, A. Di Lieto, M. Tonelli, A. Richter, E. Heumann, and G. Huber, Opt. Express 16, 15932 (2008).
    [CrossRef] [PubMed]
  10. Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
    [CrossRef]
  11. H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
    [CrossRef]
  12. D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
    [CrossRef]
  13. K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
    [CrossRef]
  14. K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
    [CrossRef]
  15. M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
    [CrossRef]
  16. K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.
  17. Y. Oki, T. Yoshiura, Y. Chisaki, and M. Maeda, Appl. Opt. 41, 5030 (2002).
    [CrossRef] [PubMed]
  18. U. Brackmann, Lambdachrome Laser Dyes (Lambda Physik, 1994).

2009 (3)

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
[CrossRef]

Y. Sun, J. D. Suter, and X. Fan, Opt. Lett. 34, 1042 (2009).
[CrossRef] [PubMed]

2008 (3)

F. Cornacchia, A. Di Lieto, M. Tonelli, A. Richter, E. Heumann, and G. Huber, Opt. Express 16, 15932 (2008).
[CrossRef] [PubMed]

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

2007 (1)

Z. Li and D. Psaltis, IEEE J. Sel. Top. Quantum Electron. 13, 185 (2007).
[CrossRef]

2006 (3)

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
[CrossRef]

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

2005 (1)

2004 (1)

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

2002 (1)

1998 (1)

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

1975 (1)

K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
[CrossRef]

Arimatsu, A.

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

Arimatsu, M.

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

Asami, Y.

K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
[CrossRef]

Balslev, S.

Berggren, M.

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Brackmann, U.

U. Brackmann, Lambdachrome Laser Dyes (Lambda Physik, 1994).

Chen, Y.

Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
[CrossRef]

Chisaki, Y.

Cornacchia, F.

Di Lieto, A.

Dodabalapur, A.

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Fan, X.

Fan, Y. X.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Fujii, K.

K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
[CrossRef]

Fujimoto, Y.

Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
[CrossRef]

Gao, Z. D.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Heumann, E.

Hirano, Y.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Huber, G.

Ishii, O.

Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
[CrossRef]

Kim, Y.

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Kimura, T.

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

Kou, Q.

Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
[CrossRef]

Kowalsky, W.

D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
[CrossRef]

Kristensen, A.

Kuwata, M.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Lee, J.

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Lemmer, U.

D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
[CrossRef]

Li, H. X.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Li, Z.

Z. Li and D. Psaltis, IEEE J. Sel. Top. Quantum Electron. 13, 185 (2007).
[CrossRef]

Lu, P.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Maeda, M.

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

Y. Oki, T. Yoshiura, Y. Chisaki, and M. Maeda, Appl. Opt. 41, 5030 (2002).
[CrossRef] [PubMed]

Michimori, A.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Ming, N. B.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Nalamasu, O.

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Oe, K.

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

Ogawa, Y.

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

Oki, Y.

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

Y. Oki, T. Yoshiura, Y. Chisaki, and M. Maeda, Appl. Opt. 41, 5030 (2002).
[CrossRef] [PubMed]

Park, S.

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Psaltis, D.

Z. Li and D. Psaltis, IEEE J. Sel. Top. Quantum Electron. 13, 185 (2007).
[CrossRef]

Richter, A.

Riedl, T.

D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
[CrossRef]

Sasagawa, T.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Schneider, D.

D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
[CrossRef]

Shin, Y.

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Slusher, R. E.

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Someya, J.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Sugiura, H.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Sun, Y.

Suter, J. D.

Takahashi, T.

K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
[CrossRef]

Takayama, M.

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

Takeuchi, N.

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

Tanaka, M.

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

Teramatsu, S.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Timoko, A.

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Toide, E.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Tonelli, M.

Usui, M.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Wang, H. T.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Watanabe, H.

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

Xu, P.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Yamamoto, S.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Yamashita, K.

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

Yamazaki, M.

Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
[CrossRef]

Yanagi, H.

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

Yanagisawa, T.

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Yesilyurt, I.

Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
[CrossRef]

Yoshiura, T.

Zhu, N.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Zhu, Y. Y.

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (4)

K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008).
[CrossRef]

K. Yamashita, A. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 93, 233303 (2008).
[CrossRef]

M. Berggren, A. Dodabalapur, R. E. Slusher, A. Timoko, and O. Nalamasu, Appl. Phys. Lett. 72, 410 (1998).
[CrossRef]

Q. Kou, I. Yesilyurt, and Y. Chen, Appl. Phys. Lett. 88, 091101 (2006).
[CrossRef]

Electron. Lett. (1)

Y. Fujimoto, O. Ishii, and M. Yamazaki, Electron. Lett. 45, 1301 (2009).
[CrossRef]

IEEE J. Quantum Electron. (2)

K. Fujii, T. Takahashi, and Y. Asami, IEEE J. Quantum Electron. 11, 111 (1975).
[CrossRef]

Y. Oki, M. Tanaka, Y. Ogawa, H. Watanabe, and M. Maeda, IEEE J. Quantum Electron. 42, 389 (2006).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

Z. Li and D. Psaltis, IEEE J. Sel. Top. Quantum Electron. 13, 185 (2007).
[CrossRef]

J. Appl. Phys. (1)

H. X. Li, Y. X. Fan, P. Xu, N. Zhu, P. Lu, Z. D. Gao, H. T. Wang, Y. Y. Zhu, and N. B. Ming, J. Appl. Phys. 96, 7756 (2004).
[CrossRef]

J. Soc. Inf. Disp. (1)

M. Kuwata, H. Sugiura, T. Sasagawa, A. Michimori, E. Toide, T. Yanagisawa, S. Yamamoto, Y. Hirano, M. Usui, S. Teramatsu, and J. Someya, J. Soc. Inf. Disp. 17, 875 (2009).
[CrossRef]

Opt. Express (2)

Opt. Laser Technol. (1)

Y. Shin, S. Park, Y. Kim, and J. Lee, Opt. Laser Technol. 38, 266 (2006).
[CrossRef]

Opt. Lett. (1)

Other (3)

K. Yamashita, T. Kimura, N. Takeuchi, K. Oe, and H. Yanagi, “Organic distributed-feedback laser with simultaneous three-colour (R, G, & B) operations,” presented at Conference of Lasers and Electro-Optics/Europe, Munich, Germany, June 14–19, 2009.

U. Brackmann, Lambdachrome Laser Dyes (Lambda Physik, 1994).

D. Schneider, U. Lemmer, W. Kowalsky, and T. Riedl, in Organic Light Emitting Devices, K.Müllen and U.Scherf, eds. (Wiley-VCH, 2006), pp. 369–395.
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Layered structure of single-chip white-laser device with three DFB laser layers. The active layers ( d = 3 μm ) of R-, G-, and B-DFB lasers are thin films of UV-curable resin doped with R-640, C-515, and S-420 organic dyes, respectively. The undercladding ( d = 3 μm ) and overcladding ( d = 1 2 μm ) are undoped UV-curable resin. d of PMMA spacer layer is 20 μm . The grating corrugation was fabricated by UV-NIL.

Fig. 2
Fig. 2

(a) Typical edge-emission spectrum of fabricated laser device. The three sharp peaks indicate DFB lasing emission from the three DFB laser layers. Inset, image of the fabricated sample under optical pumping. The sample was placed on a piece of white paper, and the room light was turned off. This was a top view, and the pumped region with a rectangular profile was the right side in the sample surface. (b) Output intensities of DFB emissions at various P.

Fig. 3
Fig. 3

Effective refractive indices of active layers of single-layered DFB samples at various doping con centrations. The indices were evaluated from the DFB lasing wavelength.

Metrics