Fiber-Optic Coupler

Bristol Instruments Inc.

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For Free-space Laser Beam Launch

Bristol Instruments Inc., a company founded by former employees of Burleigh Instruments Inc., has introduced LC-series fiber optic laser couplers that can be used to launch a free-space laser beam into a fiber or to return the laser to a collimated free-space beam.

The LC coupler is a small assembly with a 1-inch-diameter mounting disk attached to 3 meters of 9 µm core-diameter fiber that is terminated with an FC/PC connector. The coupler includes built-in alignment optics that provide two slightly off-axis back reflections to facilitate alignment. With the LC-1 installed in a standard theta-phi optical mount, alignment is achieved by centering the laser beam on the input aperture, then adjusting the mount so that the two back reflections straddle the input beam symmetrically.

The LC-2 output coupler is identical to the LC-1, but without the alignment optics. It is used to return the laser to a collimated free-space beam.

"The LC fiber optic laser coupler provides researchers with the opportunity to take advantage of the benefits of a laser beam that is in fiber," said Brian Samoriski, president of Bristol Instruments. "A laser beam in fiber can be used with various instruments that employ fiber optic input and allows for greater versatility in experimental design, since it is easier to manipulate a laser beam in fiber around a laboratory."

For more information, visit: www.bristol-inst.com; e-mail: [email protected]

Bristol Instruments
Suite 204
10 East Main Street
Victor, NY 14564
(585) 924-2620
Phone: (585) 924-2620
Fax: (585) 924-2623

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Published: March 2006