Power balancing the multibeam OMEGA laser
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Multibeam lasers often require an output beam balance that specifies the degree of simultaneity of laser output energy, instantaneous power, or instantaneous irradiance (power per unit area). In this work the general problem of balancing a multibeam laser is described. Specific techniques used to balance the output power of the 60-beam pulsed OMEGA Laser System are discussed along with a measured reduction of beam-to-beam imbalance. In particular, the square-pulse distortion induced by a simple saturating amplifier operating with its output at some fraction of its saturation fluence is derived, and a novel method of exchanging gain between saturated amplifiers in a single beam that have different saturation fluences to adjust balance is described.
- Research Organization:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0001944
- OSTI ID:
- 1485416
- Alternate ID(s):
- OSTI ID: 1480557
- Report Number(s):
- 2018-169, 1452; APOPAI
- Journal Information:
- Applied Optics, Vol. 57, Issue 32; ISSN 1559-128X
- Publisher:
- Optical Society of AmericaCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA
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journal | February 2020 |
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