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Technology Stocks : Optical Networks and Components, DWDM and Tunable Lasers

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To: songw who wrote ()	3/29/2000 8:15:00 PM
From: songw	Read Replies (1) of 275

INRD Tunable Patent " United States Patent 6,044,094 Govorkov March 28, 2000 Laser system with optical parametric oscillator Abstract A laser device which is tunable within the mid-IR range is provided. The device includes a thin etalon, formed as an uncoated plane-parallel plate of high refractive index material, which is transparent for both pump and resonant (signal, idler or both) radiation, for coupling the pump beam to the cavity of an optical parametric oscillator. Such an optical element does not require thin film optical coatings and inherently possesses a high optical damage threshold. Furthermore, high reflectivity at the pump wavelength and high transmittance for oscillating radiations are provided, by orienting the etalon at the Brewster angle. Examples of such materials include silicon and germanium, which are transparent at wavelengths longer than approximately 1 .mu.m and 2 .mu.m, respectively, and have refractive indices of n=3.4 and n=4.0, respectively. Inventors: Govorkov; Sergei V. (Boca Raton, FL) Assignee: Inrad (Northvale, NJ) " 164.195.100.11 Any tech types able to assess if this is meaningful?

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