Optical-pumping injection cavity (OPIC) Mid-IR "W" lasers with high efficiency and low loss

Authors
Bewley, WW Felix, CL Vurgaftman, I Stokes, DW Meyer, JR Lee, H Martinelli, RU
Citation
Ww. Bewley et al., Optical-pumping injection cavity (OPIC) Mid-IR "W" lasers with high efficiency and low loss, IEEE PHOTON, 12(5), 2000, pp. 477-479
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135 → ACNP
Volume
12
Issue
5
Year of publication
2000
Pages
477 - 479
Database
ISI
SICI code
1041-1135(200005)12:5<477:OIC(M">2.0.ZU;2-J
Abstract
We report an edge-emitting mid-infrared (IR) (lambda = 3.3-3.7 mu m) "W" la ser incorporating an optical-pumping injection cavity (OPIC), The active re gion of the W-OPIC is sandwiched between two Bragg mirrors that significant ly enhance the pump-beam absorptance at lambda(pump) = 2.098 mu m. Pulsed e xperiments demonstrate that besides suppressing the threshold pump intensit y, this design enhances the differential power conversion efficiency (e.g., 7.1% per uncoated facet at 220 K) and lowers the internal loss (e.g., 20 c m(-1) at 240 K) compared with all previous optically pumped mid-IR lasers.