References

1

See, for example, Quantum Noise Reduction in Optical Systems, edited by C. Fabre and E. Giacobino: Appl. Phys. B 55 (1992) 189.

2

W. H. Richardson, S. Machida and Y. Yamamoto: Phys. Rev. Lett. 66 (1991) 2867.

3

M. Yamanishi, K. Watanabe, N. Jikutani and M. Ueda: Phys. Rev. Lett. 76 (1996) 3432.

4

S. Machida and Y. Yamamoto: Phys. Rev. Lett. 60 (1988) 792.

5

F. Marin, A. Bramati, E. Giacobino, T.-C. Zhang, J.-Ph. Poizat, J.-F. Roch and P. Grangier: Phys. Rev. Lett. 75 (1995) 4606.

6

D. C. Kilper, D. G. Steel, R. Craig and D. R. Scifres: Opt. Lett. 21 (1995) 1283.

7

T. Hirano and T. Kuga, IEEE J. Quantum Electron. 31 (1995) 2236, and references therein.

8

P. R. Tapster, J. G. Rarity,and J. S. Satchell: Europhys. Lett. 4 (1987) 293.

9

S. Machida, Y. Yamamoto and Y. Itaya: Phys. Rev. Lett. 58 (1987) 1000.

10

H. A. Bachor, P. Rottengatter and C. M. Savage: Appl. Phys. B55 (1992) 258.

11

T. Hirano, G. Shinozaki, J. Abe and T. Kuga: Prog. Cryst. Growth & Charact. 33 (1996) 339.

12

Hitachi Optodevice Data Book.

13

T. Saioh and S. Minagawa: J. Appl. Phys. 15 (1976) 855.

14

J. Abe, G. Shinozaki, T. Hirano, T. Kuga and M. Yamanishi: J. Opt. Soc. Am. B 14 (1997) 1295.

 

 

Figure: Schematic drawing of experimental apparatus.

 

 

Figure: Transfer efficiency of LED at room temperature (full circle) and at liquid nitrogen temperature (open circle).

 

 

Figure: Noise power observed with a spectrum analyzer at liquid nitrogen temperature. The output PD current is 1 mA, and the resolution bandwidth is 10 KHz.

 

 

Figure: Normalized noise level at liquid nitrogen temperature.

 

 

Figure: Normalized noise level at room temperature over 10 MHz bandwidth. The output PD current is 0.5 mA.