Using a tapered waveguide Raman cell, the interaction region between the pumping laser beam and Raman media is increased.
采用斜波导的喇曼氢气池，使泵浦激光束在波导内部传播，增大了受激喇曼散射的作用区域。
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Meanwhile, the CCSR unit cell loading planar waveguide is a new type of planar waveguide dual-bandpass filter with perfect bandpass characteristic and small size.