| 摘要 |
Multiple grating cavity laser has the upper limit of a modulable speed been restricted by the shuttling time of light within a resonator due to an elongated resonance optical system. An optical amplifier (1), a looped optical fiber (2), an optical coupler (4), a passive wavelength multiplexer (5), and looped optical fibers (7-1 to 7-n) and optical fibers (6-1 to 6-n) corresponding to respective branching outputs of the passive wavelength multiplexer (5) are provided to form closed loops for laser beams of individual wavelengths, and laser beams of individual wavelengths can be extracted to the outside from output terminals (11-1 to 11-n) and modulated by an optical modulator, thereby providing a high-speed-modulated wavelength multiplexing signal. |
