An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into t
An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into the first and third arms and no more than 50% power into the second arm. In the straight sections of the arms, there is arranged an AC electrode structure for applying an RF modulation signal and a DC electrode structure for biasing the device at a working point. The AC electrode structure is arranged so that an applied modulation signal induces a negative phase shift (-Δφ) in the first arm in relation to the second arm and a positive phase shift (+Δφ) in the third arm in relation to the second arm.
대표청구항▼
An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into t
An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into the first and third arms and no more than 50% power into the second arm. In the straight sections of the arms, there is arranged an AC electrode structure for applying an RF modulation signal and a DC electrode structure for biasing the device at a working point. The AC electrode structure is arranged so that an applied modulation signal induces a negative phase shift (-Δφ) in the first arm in relation to the second arm and a positive phase shift (+Δφ) in the third arm in relation to the second arm. 700, Lebby et al., 250/227.11; US-5574814, 19961100, Noddings et al., 385/090; US-5590232, 19961200, Wentworth et al., 385/092; US-5611013, 19970300, Curizo, 385/089; US-5627931, 19970500, Ackley et al., 385/088; US-5631988, 19970500, Swirhun et al., 385/089; US-5668654, 19970900, Benjamin et al., 359/152; US-5687267, 19971100, Uchida, 385/089; US-5729644, 19980300, Shiflett et al., 385/059; US-5731709, 19980300, Pastore et al., 324/760; US-5767999, 19980600, Kayner, 359/163; US-5781682, 19980700, Cohen et al., 385/089; US-5796899, 19980800, Butrie et al., 385/092; US-5799030, 19980800, Brenner, 372/050; US-5808336, 19980900, Miyawaki, 257/315; US-5812571, 19980900, Peters, 372/036; US-5812581, 19980900, Cox, 372/050; US-5812717, 19980900, Gilliland, 385/093; US-5815623, 19980900, Gilliland et al., 385/093; US-5848214, 19981200, Haas et al., 385/120; US-5864468, 19990100, Poplawski et al., 361/753; US-5879173, 19990300, Poplwski et al., 438/138; US-5883998, 19990300, Stevens et al., 385/134; US-5909298, 19990600, Shimada et al., 359/163; US-5933558, 19990800, Sauvageau et al., 385/088; US-5940564, 19990800, Jewell, 385/093; US-5963681, 19991000, Clements, 385/014; US-5978401, 19991100, Morgan, 372/050; US-5994720, 19991100, Snyman et al., 257/086; US-5995262, 19991100, Hirota et al., 359/163; US-5999295, 19991200, Vowell et al., 359/152; US-6024500, 20000200, Wolf, 385/092; US-6028769, 20000200, Zurek, 361/704; US-6033125, 20000300, Stillie et al., 385/075; US-6034808, 20000300, Isaksson, 359/245; US-6038048, 20000300, Harris et al., 359/159; US-6071017, 20000600, Gilliland et al., 385/093; US-6072613, 20000600, Henningsson et al., 359/152; US-RE36820, 20000800, McGinley et al., 361/752; US-6095697, 20000800, Lehman et al., 385/088; US-6097521, 20000800, Althaus et al., 359/143; US-6111271, 20000800, Snyman et al., 257/080; US-6116791, 20000900, Laninga et al., 385/083; US-6130979, 20001000, Isaksson et al., 385/089; US-6160647, 20001200, Gilliland et al., 359/110; US-6201704, 20010300, Poplawski et al., 361/753; US-6203333, 20010300, Medina et al., 439/076.1; US-6206582, 20010300, Gilliland, 385/092; US-6213651, 20010400, Jiang et al., 385/092
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이 특허에 인용된 특허 (3)
Coward James F. ; Yee Ting K. ; Chang Peter ; Kou Abraham, Electro-optic modulator with improved harmonic performance.
Erlig, Hernan; Fetterman, Harold R.; Michael, Joseph, Photonic RF phase shifter with mitigated RF power fluctuation and devices incorporating the same.
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