Coupled-mode analysis of gain and wavelength oscillation characteristics of diode laser phased arrays

Journal Article · Wed May 01 00:00:00 EDT 1985 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1985.1072682· OSTI ID:6113304

Butler, J K; Ettenberg, M; Ackley, D E

The lasing wavelengths and gain characteristics of the modes of phase-locked arrays of channel-substrate-planar (CSP) lasers are presented. The gain values for the array modes are determined from complex coupling coefficients calculated using the fields of neighboring elements of the array. The computations show that, for index guided lasers which have nearly planar phase fronts, the highest order array mode will be preferred. The in-phase or fundamental mode, which produces only one major lobe in the far-field radiation pattern, has the lowest modal gain of all array modes. The modal gain differential between the highest order and fundamental modes is less than 10/cm for weak coupling between the elements. 13 references.

• Research Organization: RCA Labs., Princeton, NJ; Lytel Inc., Somerville, NJ
• OSTI ID: 6113304
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-21; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARRIER MOBILITY
DIFFERENTIAL EQUATIONS
EQUATIONS
GAIN
LASERS
MOBILITY
MODE SELECTION
PARTIAL DIFFERENTIAL EQUATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
WAVE EQUATIONS