Global to push GA events into
skip to main content

Title: Fourier plane image amplifier

A solid state laser is frequency tripled to 0.3 {micro}m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only about 1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power. 1 fig.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
170485
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 320303; PA: EDB-96:027291; SN: 96001517622
Patent Number(s):
US 5,475,527/A/
Application Number:
PAN: 8-313,514
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 12 Dec 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MASKING; DESIGN; MATERIALS DRILLING; FREQUENCY MIXING; LASER RADIATION; COST; MANUFACTURING

Similar records in DOepatents and OSTI.GOV collections: