Simultaneous gain and phase-shift enhancements in periodic gain structures

Journal Article · Tue May 01 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344912· OSTI ID:6900493

Yan, R H; Chuang, Z M; Corzine, S W; Coldren, L A ^[1]

---

1. Department of Electrical Department of Computer Engineering, University of California, Santa Barbara, Santa Barbara, California 93106 (USA)

The recently proposed concept of periodic gain, i.e., dividing the active region into segments placed at optical electric-field standing wave maxima, has been shown to greatly reduce the threshold gain requirement of the active media by up to a factor of 2 in high-finesse vertical cavity surface-emitting lasers. The lasing wavelength is determined by the period of the standing wave; however, previous analyses of these structures have failed to show that a similar enhancement effect occurs for the index shift resulting from the active segments as well. In this communication, we show that effects on both gain and index can be rigorously derived from conventional transmission scattering theory.

• OSTI ID: 6900493
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
CAVITY RESONATORS
ELECTRONIC EQUIPMENT
EQUIPMENT
GAIN
LASERS
PHASE SHIFT
RESONATORS
SCATTERING
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS