Gain-coupled DFB laser with index coupling compensation

Details Gain-coupled DFB laser with index coupling compensation Gain-coupled DFB laser with index coupling compensation

1993-12-16

1995-09-19

Epps, Georgia Y.

Coherent light generators

Particular resonant cavity

Distributed feedback

372 45, 372 46, H01S 308

Patent

active

054523184

ABSTRACT:
A gain-coupled distributed feedback (DFB) laser or amplifier structure having a gain-coupling grating in the form of grooves periodically etched through strained, multi-quantum wells. The etched grooves are regrown with buffer material having a bandgap selected to compensate for index-coupling aid to block carrier leakage. The low carrier leakage reduces non-radiative recombination which in turn increases quantum efficiency.

REFERENCES:
patent: 4894835 (1990-01-01), Uomi et al.
patent: 5164956 (1992-11-01), Lang
patent: 5208824 (1993-05-01), Tsang
patent: 5289494 (1994-02-01), Tada et al.
"Coupled-Wave Theory of Distributed Feedback Lasers", Kogelnik et al, J. Appl. Phys., vol. 43, No. 5, May 1972.
"Purely Gain-Coupled Distributed Feedback Semiconductor Lasers", Luo et al, Appl. Phys. Lett., vol. 56, No. 17, Apr. 23, 1990.
"1.55 um Gain-Coupled Quantum-Well Distributed Feedback Lasers . . . ", Borchert et al, IEEE Trans. Photons Tech. Letters, vol. 3, No. 11, Nov. 1991.
"Long-Wavelength InGaAsP/InP Distributed Feedback Lasers . . . ", Tsang et al, IEEE Photonis Technology Letters, vol. 4, No. 3, Mar. 1992.
"1.55 um Index/Gain Coupled DFB Lasers with Strained Layer . . . ", Li et al, Electronics Letters, 27th Aug. 1992, Vo. 28, No. 18, pp. 1726-1727.

Affiliated with

Also associated with

Rating

Gain-coupled DFB laser with index coupling compensation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gain-coupled DFB laser with index coupling compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gain-coupled DFB laser with index coupling compensation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1834477