公开(公告)号：DE69601388D1

公开(公告)日：1999-03-04

申请号：DE69601388

申请日：1996-04-09

Applicant: IBM

Inventor： KASH JEFFREY ALAN ,  PEZESHKI BARDIA ,  TONG FRANKLIN FUK-KAY

IPC: H01S3/082 ,  H01S3/06 ,  H01S5/00 ,  H01S5/10 ,  H01S3/085

Abstract: The asymmetric dual waveguide laser structure oscillates light in a single longitudinal mode. The structure has a pair of coupled but dissimilar waveguides that are collinear with each other. The waveguides are of such a length that frequency selective coupling between them can discriminate between wavelengths corresp. to different longitudinal modes. Each waveguide has semiconductor material capable of providing optical gain when electrically excited to therefore form a lasing medium. A pair of mirrors are placed at opposite ends of the waveguides with one waveguide having a mirror on its left side and the other waveguide having a mirror on its right side, thus providing feedback for laser oscillation. A mirror is in contact with and separates the pair of waveguides, so that only the light coupled between the pair of waveguides experiences net optical gain.

公开(公告)号：DE69601388T2

公开(公告)日：1999-09-02

申请号：DE69601388

申请日：1996-04-09

Applicant: IBM

Inventor： KASH JEFFREY ALAN ,  PEZESHKI BARDIA ,  TONG FRANKLIN FUK-KAY

IPC: H01S3/082 ,  H01S3/06 ,  H01S5/00 ,  H01S5/10 ,  H01S3/085

Abstract: The asymmetric dual waveguide laser structure oscillates light in a single longitudinal mode. The structure has a pair of coupled but dissimilar waveguides that are collinear with each other. The waveguides are of such a length that frequency selective coupling between them can discriminate between wavelengths corresp. to different longitudinal modes. Each waveguide has semiconductor material capable of providing optical gain when electrically excited to therefore form a lasing medium. A pair of mirrors are placed at opposite ends of the waveguides with one waveguide having a mirror on its left side and the other waveguide having a mirror on its right side, thus providing feedback for laser oscillation. A mirror is in contact with and separates the pair of waveguides, so that only the light coupled between the pair of waveguides experiences net optical gain.