Test results of a diffraction grating beam combiner

Jonathan A. R. Rall; Paul L. Spadin; Robert K. Zimmerman Jr.; William L. Maynard

doi:10.1117/12.18194

1 July 1990 Test results of a diffraction grating beam combiner

Jonathan A. R. Rall, Paul L. Spadin, Robert K. Zimmerman Jr., William L. Maynard

Proceedings Volume 1218, Free-Space Laser Communication Technologies II; (1990) https://doi.org/10.1117/12.18194
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

A laser diode beam combiner employing diffraction gratings has been fabricated and tested. The Grating Laser Beam Combiner (GLBC) uses two holographic diffraction gratings to incoherently combine the first order diffraction components of four 35 mW AlGaAs lasers. The grating rhomb design minimizes the transmitter sensitivity to the inherent frequency instability of laser diodes. The overall throughput of the combiner is 74 percent. Each laser was temperature controlled to 0.1 C and modulated with 110 Mbps QPPM data. Two lasers under modulation were coaligned to within 76 microrad with a combined average power of 45 mW.

Citation Download Citation

Jonathan A. R. Rall, Paul L. Spadin, Robert K. Zimmerman Jr., and William L. Maynard "Test results of a diffraction grating beam combiner", Proc. SPIE 1218, Free-Space Laser Communication Technologies II, (1 July 1990); https://doi.org/10.1117/12.18194

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available