Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-03-07
2006-03-07
Stcyr, Daniel (Department: 2876)
Optical waveguides
With optical coupler
Input/output coupler
C385S033000
Reexamination Certificate
active
07010194
ABSTRACT:
A method of coupling laser-radiation into an optical fiber includes providing a stack of diode-laser bars and first and second parallel mirrors, the second mirror is selectively reflective only for one polarization plane of the laser-radiation. Each of the diode-laser bars includes at least two spaced-apart diode-laser emitters each emitting a plane-polarized beam of laser-radiation having a fast axis and a slow axis. The laser-radiation beams are collimated in the fast axis by a cylindrical lens located in front of each bar. In one arrangement the polarization orientation of one collimated beam from each diode-laser is rotated by 90 degrees and transmitted through the selectively-reflective mirror. The other collimated beam from each diode-laser bar is reflected onto the selectively-reflective mirror by the first mirror and reflected from the selectively-reflective mirror such that the reflected beam combines with the transmitted beam to form a combined beam. As many combined beams are formed as there are diode-laser bars in the stack. These combined beams are focused into an entrance face of the optical fiber.
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Anikitchev Serguei G.
Rekow Mathew N.
Coherent Inc.
Stallman & Pollock LLP
Stcyr Daniel
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