Gain saturation in distributed feedback lasers

Journal Article · Sat Nov 01 00:00:00 EST 1975 · Appl. Opt., v. 14, no. 11, pp. 2650-2652

DOI:https://doi.org/10.1364/AO.14.002650· OSTI ID:4134318

Haus, H A

An approximate method is presented for the analysis of overcoupled distributed feedback lasers. A closed form expression is obtained for the power emitted by a laser normalized to the saturation power in terms of the loss coefficient $alpha$/subL/, small signal gain coefficient $alpha$$sub 0$, coupling parameter kappa, and length of the laser L. The result is compared with published computer solutions, and good agreement is obtained in the range for absolute value of kappa XL > 4; qualitative agreement extends to absolute value of kappa XL = 1. The closed form expression is adapted to predict the saturation behavior of leaky-wave lasers. (AIP)

• Research Organization: Bell Laboratories, Holmdel, New Jersey 07733
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-009151
• OSTI ID: 4134318
• Journal Information: Appl. Opt., v. 14, no. 11, pp. 2650-2652, Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N42210* -Engineering-Facilities & Equipment-Lasers
420300* -Engineering-Lasers
*SEMICONDUCTOR LASERS- GAIN
FEEDBACK
PERFORMANCE
POWER
Q- SWITCHING