Compact optical wavelength add/drop multiplexer
Method and system for selectively adding and dropping selected wavelength components &lgr;=&lgr;k1 and &lgr;=&lgr;k2 (1&lE;k1&lE;k2&lE;K) in a light signal having a sequence of wavelengths &lgr;k (k=1, 2, . . . , K), using a dual fiber collimator at each end of an OADM device that contains an optical filter that transmits a selected wavelength &lgr;k1 and reflects the other wavelengths &lgr;k. Connecting two optical communication terminals in a network allows addition and dropping of a selected wavelength. Estimated total optical insertion losses, between the common port and the express port, for 2&times;2 and 3&times;3 add/drop combinations are 0.4 dB and 0.8 dB, respectively.
Tera FiberOptics
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H04J G02B G02B G02B
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Suyou Charles Z. Yuehong
He Chang Bai