Compact wavelength division multiplexer/demultiplexer
A wavelength division multiplexer and demultiplexer technology, applied in the direction of instruments, light guides, optics, etc., can solve the problem of increasing the sensitivity of the optical path, and achieve the effect of small size and simple structure
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[0017] Specific embodiments of the present invention will be further described in detail below.
[0018] Such as figure 1 As shown, the present invention provides a compact wave demultiplexer, which includes an optical block 10 made of high light-transmitting glass, an input end 12 and an output end 22 . The optical block 10 includes a first side 14 and a second side 16 parallel to each other, wherein the first side 14 is coated with a high reflective film (not shown) and formed as a reflective surface for reflecting light. The second side 16 is provided with a plurality of filters 18 , respectively filtering light rays 8 of different wavelengths and reflecting light rays 8 of other wavelengths back. The light 8 emitted by the input end 12 is transmitted in the optical block 10, the light 8 is reflected between the first side 14 and the filter 18 to pass through all the filters 18 in turn, and the light passing through the filter 18 enters the output end 22 . A refracting p...
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