Abstract
A 1.55-μm multiple quantum well laser diode with a built-in vertical mode expander exhibits high single mode output power in a circular far-field beam pattern. The divergence angle FWHM of the tapered device is 16° and the single mode laser output power exceeded 90 mW in cw condition. The coupling efficiency of a tapered LD is enhanced by 2 dB over a nontapered reference device, and a fiber output exceeding 50 mW is also demonstrated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 155-156 |
| Number of pages | 2 |
| Journal | Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS |
| Volume | 11 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA Duration: May 18 1997 → May 23 1997 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering