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0.87-micron CSP diode lasers for spaceborne communicationsIndex-guided channeled-substrate-planar (CSP) AlGaAs diode lasers are being developed for reliable, high-power operation for use as sources in spaceborne optical communications systems. Although most work on this AlGaAs structure has been aimed at optimizing performance at output wavelengths less than 8400 A, emission in the 8700 A regime is also of interest. In particular, such wavelengths are required for use in the direct detection laser transceiver to be incorporated into NASA's advanced communications technology satellite, in order to avoid absorption of the light by the atmosphere when communicating with ground-based terminals. Lowest order spatial mode and substantially single longitudinal mode output has been observed in 0.87-micron CSP devices in excess of 50 mW cw and 100 mW 50 percent duty-cycle, with rms phase-front aberrations measured to be about lambda/40.
Document ID
19880048027
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Carlin, D. B.
(RCA Labs. Princeton, NJ, United States)
Pultz, G. N.
(RCA Labs. Princeton, NJ, United States)
Goldstein, B.
(RCA Laboratories Princeton, NJ, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Lasers And Masers
Accession Number
88A35254
Funding Number(s)
CONTRACT_GRANT: NAS1-17441
Distribution Limits
Public
Copyright
Other

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