Differentially patterned pumped optical semiconductor gain media

Details Differentially patterned pumped optical semiconductor gain media Differentially patterned pumped optical semiconductor gain media

1996-07-22

1998-08-11

Hellner, Mark

Optical: systems and elements

Optical amplifier

Particular active medium

H01S 300

Patent

active

057935211

ABSTRACT:
An optical gain medium comprising, for example, an optical semiconductor device which is differentially pumped and a master oscillator power amplifier (MOPA) device employing such an amplifier. The gain medium may have a linear stripe region or a diverging stripe region that allows the light propagating therein to diverge along at least part of its length, such as a flared or tapered amplifier having a gain region that increases in width toward its output at a rate that equals or exceeds the divergence of the light. The amplifier is pumped with a current density at its input end which is smaller than the current density used to pump the output end for maintaining coherence of the beam to high power levels employing differential pumping. Differential pumping may be both longitudinal and lateral within the amplifier and may be patterned to reduce the peak modal gain observed longitudinally along and/or laterally across the pumped stripe region of the gain medium so that he experienced modal gain of the propagating light is more balanced along the length of the stripe region, i.e., rendered significantly more uniform in distribution, providing for higher diffraction limited performance without optical filamentation formation.

REFERENCES:
patent: 4558449 (1985-12-01), Gordon
patent: 4713821 (1987-12-01), Bradford et al.
patent: 4744089 (1988-05-01), Montroll et al.
patent: 4751719 (1988-06-01), Mito et al.
patent: 4856017 (1989-08-01), Ungar
patent: 4932034 (1990-06-01), Usami et al.
patent: 4942585 (1990-07-01), Ungar
patent: 4965525 (1990-10-01), Zah
patent: 4977567 (1990-12-01), Hanke
patent: 5003550 (1991-03-01), Welch et al.
patent: 5012484 (1991-04-01), Flynn et al.
patent: 5021742 (1991-06-01), Jacob
patent: 5029297 (1991-07-01), Halemane et al.
patent: 5050175 (1991-09-01), Ayral et al.
patent: 5103456 (1992-04-01), Scifres et al.
patent: 5111475 (1992-05-01), Ackerman et al.
patent: 5175643 (1992-12-01), Andrews
patent: 5181213 (1993-01-01), Shinokura et al.
patent: 5220572 (1993-06-01), Kawaguchi
patent: 5400353 (1995-03-01), Walpole et al.
patent: 5499261 (1996-03-01), Welch et al.
patent: 5513196 (1996-04-01), Bischel et al.
patent: 5539571 (1996-07-01), Welch et al.
Bendelli, et al. entitled "A new Structure for High Power TW-SLA", IEEE Photonics Technology Letter vol. 3, No. 1, Jan. 1991.

Affiliated with

Also associated with

Rating

Differentially patterned pumped optical semiconductor gain media does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differentially patterned pumped optical semiconductor gain media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differentially patterned pumped optical semiconductor gain media will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-394806