Application Note for LN Modulators

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7, Photo Detector Integrated LiNbO3 Modulator

PD integrated Modulator reduces the parts which bias control circuit needs. Fig1 is the general idea of Bias Control configuration.

Fig.1 Bias Control Configration by TAP Coupler and PD integrated modurator

a)Bias Control Configration by TAP Coupler

a)Bias Control Configration by TAP Coupler

b)Bias Control Configration by PD integrated modurator

b)Bias Control Configration by PD integrated modurator


Features
Our LiNbO3 modurator picks up radiation mode from Y-Cnbiner junction by monitor PD. Output power is stable because it picks up a radiation mode. PD Output is inversely monitored to a main signal output (See Fig.3).
Fig.2 Y-Conbiner junction
Fig.2 Y-Conbiner junction
Fig.3 Main Optical output and Monitor signal
Fig.3 Main Optical output and Monitor signal


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Data Sheet