Electro-absorption type semiconductor optical modulator having a

Details Electro-absorption type semiconductor optical modulator having a Electro-absorption type semiconductor optical modulator having a

1997-05-30

2000-08-08

Tran, Minh Loan

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

257 22, 257185, 257191, H01L 2906, H01L 31072

Patent

active

061005436

ABSTRACT:
Disclosed is an electro-absorption type semiconductor optical modulator utilizing the Quantum Confinement Stark Effect, in which a quantum well structure introduced in its optical absorption layer is arranged to have a potential structure such that one of the electron affinity and the energy of the top of the valence band increases in the laminating direction, while the other decreases, thereby canceling the built-in field. It is intended to lower the drive voltage and to enhance an on/off ratio (extinction ratio). Thus, the absorption peak becomes narrow at a no bias state to attain a low drive voltage and an enhanced extinction ratio.

REFERENCES:
W. Chen et al., "Quantum-confined Stark shift for differently shaped quantum wells", pp. 828-836, Semiconductor Science and Technology, vol. 7, No. 6, Jun. 1992.
G. Bastard et al., "Variational Calculation on a Quantum Well in an Electric Field", Physical Review B, vol. 28, No. 6, Sep. 15, 1983, pp. 3241-3245.
Y. Inomoto et al., "Low Voltage Drive and High Power Operation in DFB-LD/Modulator Integrated Light Source", General Assembly of the Institute of Electronics, Information and Communication Engineers, 1995, 347.

Affiliated with

Also associated with

Rating

Electro-absorption type semiconductor optical modulator having a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-absorption type semiconductor optical modulator having a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-absorption type semiconductor optical modulator having a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1152483