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광학·전자 영상장비 > 광파발생/측정장비 > 달리 분류되지 않는 광파발생/측정장비

본 장비는 초고속 광통신 광서브모듈, 광학엔진, 광트랜시버의 광신호 전송특성 평가시 기준으로 사용할 수 있도록 변조성능이 우수한 표준 광원으로 사용됨

The ModBox-VNA-1310nm-1550nm features:
• A chirp-free LiNbO3 (Lithium Niobate) Mach-Zehnder Intensity modulator. It is selected for its wide optical bandwidth, and its high electro-optic bandwidth and flat, low ripple, electro-optic response curve.
• A modulator bias controller. The internal LiNbO3 modulator is a low drift device. However an automatic bias control circuit is provided to lock the operating point of the modulator at the quadrature point whatever the environmental conditions. The bias control circuit is dither free and therefore does not add any spurious content to the small signal modulation generated by the VNA. It is pre-set for operation in quadrature, in the linear portion of the modulator transfer curve. The system can operate over a large power dynamic range thanks to its software controllable gain parameters.
• Two 1310 nm and 1550 nm low RIN lasers are integrated by default (C-Band tunable laser in option). For convenience, the two lasers are multiplexed. Wavelength selection (1310 nm or 1550 nm) and laser power are tunable through the front panel controls or the ModBox software interface.