Abstract

Wideband, highly noise-suppressed squeezing was observed by using a high-speed, high-quantum-efficiency light-emitting diode. The squeezing bandwidth extended over 200 MHz. We also have investigated the dependence of the squeezing bandwidth on the pump-current at low temperature. The experimental result was compared with the theoretical predictions based on a unified model of the pump and recombination process and was well explained by the model at the thermionic emission limit.

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References

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  1. D. C. Kilper, D. G. Steel, R. Craig, and D. R. Scifres, "Polarization-dependent noise in photon-number squeezed light generated by quantum-well lasers," Opt. Lett. 21, 1283-1285 (1996).
    [CrossRef] [PubMed]
  2. G. Shinozaki, J. Abe, T. Hirano, T. Kuga, and M. Yamanishi, ``3 dB wideband squeezing in photon number fluctuations from a light emitting diode," Jpn. J. Appl. P s. 36, Part 1, 6350-6352 (1997).
    [CrossRef]
  3. M. Kobayashi, Y. Kadoya, H. Yuji, R. Masuyama, and M. Yamanishi, ``Squeezing of photon-number fluctuations in the frequency range wider than 300 MHz in light-emitting diodes at room temperature," J. Opt. Soc. Am. B 17, 1257 - 1262 (2000).
    [CrossRef]
  4. P. J. Edwards, ``Sub-Poissonian electronic and photonic noise generation in semiconductor junctions," Australian J. Phys. 53, 179-192 (2000).
  5. M. Kobayashi, M. Yamanishi, H. Sumitomo, and Y. Kadoya, ``Influences of backward-pump process on photon-number squeezing in a constant-current-driven heterojunction light-emitting-diode: transition from thermionic emission to diffusion limits," Phys. Rev. B 60, 16686-16700 (1999).
    [CrossRef]
  6. A. Imamoglu and Y. Yamamoto, ``Noise suppression in semiconductor p-i-n junctions: transition from macroscopic squeezing to mesoscopic Coulomb blockade of electron emission processes," Phys. Rev. Lett. 70, 3327-3330 (1993).
    [CrossRef]
  7. J. Kim and Y. Yamamoto, ``Theory of noise in p-n junction light emitters," Phys. Rev. B 55, 9949-9959 (1997).
    [CrossRef]
  8. Y. Yamamoto, S. Machida, and O. Nilsson, ``Amplitude squeezing in a pump-noise-suppressed laser oscillator," Phys. Rev. A 34, 4025 (1986).
    [CrossRef] [PubMed]
  9. P. R. Tapster, J. G. Rarity, and J. S. Satchell, ``Generation of sub-Poissonian light by high-efficiency light-emitting diodes," Europhys. Lett. 4, 293-299 (1987).
    [CrossRef]
  10. M. C. Teich and B. Saleh, ``Photon bunching and antibunching," Progress in Optics 26, 1-104 (1988).
    [CrossRef]
  11. J. Kim, H. Kan, and Y. Yamamoto, ``Macroscopic Coulomb-blockade effect in a constant-current-driven light-emitting diode," Phys. Rev. B 52, 2008-2012 (1995).
    [CrossRef]
  12. J. Abe, G. Shinozaki, T. Hirano, T. Kuga, and M. Yamanishi, ``Observation of the collective Coulomb blockade effect in a constant-current-driven high-speed light-emitting diode," J. Opt. Soc. Am. B 14, 1295-1298 (1997).
    [CrossRef]
  13. J. P. Bergman, C. Hallin, and E. Janzen, ``Temperature dependence of the minority carrier lifetime in GaAs/AlGaAs double heterostructures," J. Appl. P s. 78, 4808 (1995).
    [CrossRef]
  14. E. Goobar, A. Karlsson, and G. Bjork, "Experimental realization of a semiconductor photon number amplifier and a quantum optical tap," Phys. Rev. Lett. 71, 2002-2005 (1993).
    [CrossRef] [PubMed]
  15. -F. Roch, J. -Ph. Poizat, and P. Grangier, ``Sub-shot-noise manipulation of light using semiconductor emitters and receivers," Phys. Rev. Lett. 71, 2006-2009 (1993).
    [CrossRef] [PubMed]

Other

D. C. Kilper, D. G. Steel, R. Craig, and D. R. Scifres, "Polarization-dependent noise in photon-number squeezed light generated by quantum-well lasers," Opt. Lett. 21, 1283-1285 (1996).
[CrossRef] [PubMed]

G. Shinozaki, J. Abe, T. Hirano, T. Kuga, and M. Yamanishi, ``3 dB wideband squeezing in photon number fluctuations from a light emitting diode," Jpn. J. Appl. P s. 36, Part 1, 6350-6352 (1997).
[CrossRef]

M. Kobayashi, Y. Kadoya, H. Yuji, R. Masuyama, and M. Yamanishi, ``Squeezing of photon-number fluctuations in the frequency range wider than 300 MHz in light-emitting diodes at room temperature," J. Opt. Soc. Am. B 17, 1257 - 1262 (2000).
[CrossRef]

P. J. Edwards, ``Sub-Poissonian electronic and photonic noise generation in semiconductor junctions," Australian J. Phys. 53, 179-192 (2000).

M. Kobayashi, M. Yamanishi, H. Sumitomo, and Y. Kadoya, ``Influences of backward-pump process on photon-number squeezing in a constant-current-driven heterojunction light-emitting-diode: transition from thermionic emission to diffusion limits," Phys. Rev. B 60, 16686-16700 (1999).
[CrossRef]

A. Imamoglu and Y. Yamamoto, ``Noise suppression in semiconductor p-i-n junctions: transition from macroscopic squeezing to mesoscopic Coulomb blockade of electron emission processes," Phys. Rev. Lett. 70, 3327-3330 (1993).
[CrossRef]

J. Kim and Y. Yamamoto, ``Theory of noise in p-n junction light emitters," Phys. Rev. B 55, 9949-9959 (1997).
[CrossRef]

Y. Yamamoto, S. Machida, and O. Nilsson, ``Amplitude squeezing in a pump-noise-suppressed laser oscillator," Phys. Rev. A 34, 4025 (1986).
[CrossRef] [PubMed]

P. R. Tapster, J. G. Rarity, and J. S. Satchell, ``Generation of sub-Poissonian light by high-efficiency light-emitting diodes," Europhys. Lett. 4, 293-299 (1987).
[CrossRef]

M. C. Teich and B. Saleh, ``Photon bunching and antibunching," Progress in Optics 26, 1-104 (1988).
[CrossRef]

J. Kim, H. Kan, and Y. Yamamoto, ``Macroscopic Coulomb-blockade effect in a constant-current-driven light-emitting diode," Phys. Rev. B 52, 2008-2012 (1995).
[CrossRef]

J. Abe, G. Shinozaki, T. Hirano, T. Kuga, and M. Yamanishi, ``Observation of the collective Coulomb blockade effect in a constant-current-driven high-speed light-emitting diode," J. Opt. Soc. Am. B 14, 1295-1298 (1997).
[CrossRef]

J. P. Bergman, C. Hallin, and E. Janzen, ``Temperature dependence of the minority carrier lifetime in GaAs/AlGaAs double heterostructures," J. Appl. P s. 78, 4808 (1995).
[CrossRef]

E. Goobar, A. Karlsson, and G. Bjork, "Experimental realization of a semiconductor photon number amplifier and a quantum optical tap," Phys. Rev. Lett. 71, 2002-2005 (1993).
[CrossRef] [PubMed]

-F. Roch, J. -Ph. Poizat, and P. Grangier, ``Sub-shot-noise manipulation of light using semiconductor emitters and receivers," Phys. Rev. Lett. 71, 2006-2009 (1993).
[CrossRef] [PubMed]

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Figures (3)

Fig. 1.
Fig. 1.

Schematic of the experimental setup. LED1 (sub-Poissonian mode) and LED2 (Poissonian mode) were driven by a constant current source. LED2 was weakly coupled with the photodiode (PD) (ηp <1%).

Fig. 2.
Fig. 2.

Pump-current dependence of the squeezing bandwidth. Theoretical curve for the thermionic emission limit (trace a, solid-red line) and for the diffusion limit (traces b, c, and d, dashed-blue lines). Trace a (Cdep =310 pF, τrad =0.72 ns) and trace b (Cdep =270 pF, τrad =0.62 ns) are chosen to fit the data in the lower and higher pump-current regime with 96 K. Trace c (Cdep =300 pF, τrad =0.42 ns) is the fit in the lower ILED , and trace d is the fit in the higher ILED .

Fig. 3.
Fig. 3.

Wideband squeezing observed at 48 K (lower) (ILED =4.1 mA, η=0.37). The squeezing bandwidth was estimated to be 165 MHz. For comparison, the data at room temperature (297 K) (upper) (ILED =5.6 mA, η=0.27) was also shown.

Equations (2)

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W t = 1 η 1 { 1 + ( 2 π f τ te ) 2 } { 1 + ( 2 π f τ rad ) 2 } ,
W d = 1 η 1 1 + { 2 π f ( τ te + τ rad ) } 2 .

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