Abstract

We present a tunable photonic crystal fiber (PCF) directional coupler fabricated by a side-polishing method. The PCF directional coupler was modeled as a typical single-mode fiber-based directional coupler and analyzed using the improved effective-index method (IEIM). The characteristics of the PCF directional coupler such as the coupling coefficient and the coupling ratio were measured and found to be in good agreement with those predicted by the theoretical model. The PCF directional coupler exhibited an insertion loss of ∼2 dB for a 3 dB coupler and was able to tune the coupling ratio between 0% and 100% by tilting the angle of the top side-polished quartz block against the fixed-bottom quartz block.

© 2007 Optical Society of America

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2006 (1)

K. N. Park, T. Erdogan, and K. S. Lee, "Cladding mode coupling in long-period gratings formed in photonic crystal fibers," Opt. Commun 266, 541-545 (2006).

2005 (1)

2004 (4)

2003 (1)

2002 (1)

2000 (2)

T. A. Birks, W. J. Wadsworth, and P. St. J. Russell, "Supercontinuum generation in tapered fibers," Opt. Lett. 25, 1415-1417 (2000).

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

1999 (1)

1997 (1)

1982 (1)

M. J. F. Digonnet and H. J. Shaw, "Analysis of a tunable single mode optical fiber coupler," IEEE J. Quantum Electron. QE-18, 746-754 (1982).

Arriaga, J.

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

Bennett, P. J.

Birks, T. A.

T. A. Birks, W. J. Wadsworth, and P. St. J. Russell, "Supercontinuum generation in tapered fibers," Opt. Lett. 25, 1415-1417 (2000).

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

T. A. Birks, J. C. Knight, and P. St. J. Russell, "Endlessly single-mode photonic crystal fiber," Opt. Lett. 22, 961-963 (1997).

Broderick, N. G. R.

Demokan, M. S.

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

Digonnet, M. J. F.

M. J. F. Digonnet and H. J. Shaw, "Analysis of a tunable single mode optical fiber coupler," IEEE J. Quantum Electron. QE-18, 746-754 (1982).

Eom, J. B.

Erdogan, T.

K. N. Park, T. Erdogan, and K. S. Lee, "Cladding mode coupling in long-period gratings formed in photonic crystal fibers," Opt. Commun 266, 541-545 (2006).

Folkenberg, J. R.

Jang, H. S.

Jin, W.

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

Kim, H.

Kim, J.

Kim, J. C.

Kim, K. T.

Kirn, J. C.

Knight, J. C.

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

T. A. Birks, J. C. Knight, and P. St. J. Russell, "Endlessly single-mode photonic crystal fiber," Opt. Lett. 22, 961-963 (1997).

Lee, B. H.

Lee, K. S.

Lim, J. H.

Lu, C.

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

Monro, T. M.

Moon, D. S.

Mortensen, N. A.

Nielsen, M. D.

Ortigosa-Blanch, A.

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

Paek, U.-C.

Park, K. N.

K. N. Park, T. Erdogan, and K. S. Lee, "Cladding mode coupling in long-period gratings formed in photonic crystal fibers," Opt. Commun 266, 541-545 (2006).

K. N. Park and K. S. Lee, "Improved effective-index method for analysis of photonic crystal fibers," Opt. Lett. 30, 958-960 (2005).

Petersson, A.

Richardson, D. J.

Russell, P. St. J.

T. A. Birks, W. J. Wadsworth, and P. St. J. Russell, "Supercontinuum generation in tapered fibers," Opt. Lett. 25, 1415-1417 (2000).

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

T. A. Birks, J. C. Knight, and P. St. J. Russell, "Endlessly single-mode photonic crystal fiber," Opt. Lett. 22, 961-963 (1997).

Shaw, H. J.

M. J. F. Digonnet and H. J. Shaw, "Analysis of a tunable single mode optical fiber coupler," IEEE J. Quantum Electron. QE-18, 746-754 (1982).

Simonsen, H. R.

Wadsworth, W. J.

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

T. A. Birks, W. J. Wadsworth, and P. St. J. Russell, "Supercontinuum generation in tapered fibers," Opt. Lett. 25, 1415-1417 (2000).

Yang, G.-H.

Yang, X.

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

Zhao, C.-L.

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

IEEE J. Quantum Electron. (1)

M. J. F. Digonnet and H. J. Shaw, "Analysis of a tunable single mode optical fiber coupler," IEEE J. Quantum Electron. QE-18, 746-754 (1982).

IEEE Photon. Technol. Lett. (2)

J. C. Knight, J. Arriaga, T. A. Birks, A. Ortigosa-Blanch, W. J. Wadsworth, and P. St. J. Russell, "Anomalous dispersion in photonic crystal fiber," IEEE Photon. Technol. Lett. 12, 807-809 (2000).

C.-L. Zhao, X. Yang, C. Lu, W. Jin, and M. S. Demokan, "Temperature-insensitive interferometer using a highly birefringent photonic crystal fiber loop mirror," IEEE Photon. Technol. Lett. 16, 2535-2537 (2004).

Opt. Commun (1)

K. N. Park, T. Erdogan, and K. S. Lee, "Cladding mode coupling in long-period gratings formed in photonic crystal fibers," Opt. Commun 266, 541-545 (2006).

Opt. Lett. (9)

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