Del
Mar has optimized its new optical isolator, the 5AFI36- 800B broadband Faraday
Isolator, to work with femtosecond Ti:sapphire lasers. The device isolates the
laser from its own reflections. Its magneto-optical rod is cut from glass
(MOS-10), polished to a flatness of L/10, and has a
parallelism better than 10 arc•s and a peak isolation of 36 dB. It is
antireflection-coated to give a residual reflection of less than 0.2% on each
side in the 765- to 835-nm range. The isolator’s polarizers are air-spaced Glan
prisms made of calcite. Entrance and exit faces of the polarizers are
antireflection-coated to provide a residual reflection of less than 0.3% in the
765- to 835-nm range.
Del Mar Ventures
4119 Twilight Ridge
San Diego, CA 92130