Vertical cavity surface emitting laser with phase shift mask

Coherent light generators – Particular resonant cavity – Distributed feedback

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

372 45, 372 46, 372 50, 372 29, 372 92, H01S 3085

Patent

active

059178485

ABSTRACT:
A vertical cavity surface emitting laser (VCSEL) with an integrated phase shift mask for use in an optical pickup head for high density optical storage applications and a method of fabrication. The VCSEL is capable of emitting a power output of at least 10 mW. The phase shift mask is integrated with the VCSEL to allow for a 180.degree. shift in light emitted therethrough, thereby creating a reduced focal spot size for high density data write applications. The VCSEL with integrated phase shift mask is utilized in an optical pickup head capable of high density read and write applications for both CDs and DVDs.

REFERENCES:
patent: 4805176 (1989-02-01), Botez et al.
patent: 5493577 (1996-02-01), Choquette et al.
patent: 5732101 (1998-03-01), Shin

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

Vertical cavity surface emitting laser with phase shift mask does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vertical cavity surface emitting laser with phase shift mask, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical cavity surface emitting laser with phase shift mask will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1382943

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