Coupling structure between a semiconductor laser and an optical

Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G02B 636

Patent

active

054795494

ABSTRACT:
In a coupling structure for directly coupling a semiconductor laser to an optical fiber without using a lens, a coupling structure is provided which is superior in producibility, low in coupling loss and stable in operation of the semiconductor laser, by removing an influence of a return light due to Fresnel reflection from an end face of the optical fiber. A re-combination of the semiconductor laser to an active layer of the optical fiber is prevented by scattering a reflection light at the end face of the optical fiber by positively increasing a surface roughness Rz of the end face of the optical fiber to a range from 0.04 .mu.m to 0.06 .mu.m. The end face is formed by cutting the optical fiber with a blade saw having abrasive of particle size in a range from #1000 gauge to #2000 gauge corresponding to a range from 8 .mu.m to 20 .mu.m. The end face may be polished with abrasive having size in a rage from #1000 to #2000 gauge.

REFERENCES:
patent: 4639130 (1987-01-01), Koike et al.
patent: 4676231 (1987-06-01), Hisazumi et al.
patent: 4786132 (1988-11-01), Gordon
patent: 4966429 (1990-10-01), Stephens et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coupling structure between a semiconductor laser and an optical does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coupling structure between a semiconductor laser and an optical , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling structure between a semiconductor laser and an optical will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1375389

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.