| 摘要 |
PROBLEM TO BE SOLVED: To provide a uniform and high unwanted wave eliminating function for all signals together with wavelength multiplexing/demultiplexing function in a single body configuration of module which has a simple and space saving shape, and excellent in terms of cost and productivity. SOLUTION: In an optical circuit module 1 of a single configuration, an optical filter 6 for wavelength multiplexing/demultiplexing is arranged between two-core fiber collimator 42 and one-core fiber collimator 41. An optical filter 5 which interrupts wavelength bands of unwanted light is interposed between the optical filter 6 for multiplexing/demultiplexing and the two-core collimator 42. |
