LiNbO3 Modulator Operation by Duo Binary Format 1. Experimental setup for Duo Binary format * Following gives you the general idea for the experiment above. This diagram should not guarantee any operation by each components. The operating way of these components should follow the manual each manufaturer provides. 2. The configuraton & the operation way of Duo Binary Modulator for Duo Binary Format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) The bias point is set at the bottom of the transfer curve. (2) The modulator is operated by 2Vpai RF input. The electrical input is related to the optical output drawed above. *Duo Binary Modulator is to be released soon. Please contact to the sales department when you have any questions with respect to the new modulator. LiNbO3 Modulator Operation by Differential Phase Shift Keying (DPSK) 1. Experimental setup for DPSK(RZ-DPSK) format * Following gives you the general idea for the experiment above. This diagram should not guarantee any operation by each components. The operating way of these components should follow the manual each manufaturer provides. 2-1. The configuraton & the operation way of Chirp-free Intensity Modulator for DPSK Format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) The bias point is set at the bottom of the transfer curve. (2) The modulator is operated by 2Vpai RF input. The electrical input is related to the optical output drawed above. 2-2. The configuraton & the operation way of Dual Electrode Intensity Modulator for DPSK Format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) The bias point is set at the bottom of the transfer curve. 3. The configuraton & the operation way of Pulse/Data Integrated Intensity Modulator for RZ-DPSK Format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. [Pulse Port] (1) When you intend to operate CS-RZ (Carrier Suppressed RZ), c while the bias point is at the top when you intend to generate 33% RZ pulses. (2) The sine wave at f/2 is input to the Pulse Port. RZ pulses are created by 2Vpai swing. [Data Port] (3) The bias point of Data Port is set at the bottom. (4) The Data Port is operated by 2Vpai RF input. * The receiver detects the inversed signal against the encoded signal. * Dual Electrode Modulator is avaiable as the Pulse Carver when you prefer the chirp-controlled RZ signal. a. For Chirp-free RZ Pulse Combination Pulse Modulator Data Modulator Chirp-free modulator Chirp-free or Dual electrode modulator b. For Chirp-controlled RZ Pulse Combination Pulse Modulator Data Modulator Dual electrode modulator Chirp-free or Dual electrode modulator LiNbO3 Modulator Operation by Differential Quadrature Phase Shift Keying (DQPSK) 1. Experimental setup for DQPSK(RZ-DQPSK) format * Following gives you the general idea for the experiment above. This diagram should not guarantee any operation by each components. The operating way of these components should follow the manual each manufaturer provides. 2. The configuraton & the operation way of SSB Modulator for DQPSK Format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) The bias points of both MZ1 & MZ2 are set at the bottom of each transfer curve. (2) 90degrees phase difference between both arms of main MZ should be created by adjusting DC3. (3) Each sub MZ(MZ1, MZ2)are operated by 2Vpai RF input. The phase should be matched between MZ1 and MZ2 when you input the signal. 3. The configuraton & the operation way of SSB modulator for RZ-DQPSK Format *Pleae follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. [Pulse Carver Modulator] (1) When you intend to operate CS-RZ (Carrier Suppressed RZ), the bias point of Pulse Carver is set at the bottom of the transfer curve while the bias point is at the top when you intend to generate 33% RZ pulses. (2) The sine wave at f/2 is input to the Pulse Carver. RZ pulses are created by 2Vpai swing. [SSB Modulator] (3) On the SSB modulator side, the bias points of both MZ1 & MZ2 are set at the bottom of each transfer curve. (4) 90degree phase difference between both arms of main MZ should be maintained by adjusting DC3. (5) Each sub MZ(MZ1, MZ2)are operated by 2Vpai RF input. The phase should be matched between MZ1 and MZ2 when you input the signal. * The receiver detects the inversed signal against the encoded signal. * Dual Electrode Modulator is avaiable as the Pulse Carver when you prefer the chirp-controlled RZ signal. LiNbO3 Modulator Operation by Single Side Band (SSB) Modulation 1. Experimental setup for SSB format * Following gives you the general idea for the experiment above. This diagram should not guarantee any operation by each components. The operating way of these components should follow the manual each manufaturer provides. 2-1. The configuraton & the operation way of SSB Modulator for SSB format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) When you intend to suppress the carrier, the bias points of of both MZ1 and MZ2 are set at the bottom of the transfer curve while the bias points are set at the top when you prefer to maintain the carrier. The suppressed ratio is controllable by adjusting DC1 and DC2. (2) RF signal is input both from MZ1 and MZ2. The phase difference of 90 degrees should be maintained whlie you input the RF electrical signal. (3) 90degree phase difference between both arms of main MZ should be maintained by adjusting DC3. 2-2. The configuraton & the operation way of Dual Electrode Modulator for SSB format *Please follow the operation manual which will be attached on the product when you operate the product. The operation manual advises you the appropriate way of the operation. (1) 90degree phase difference between both arms of MZ should be maintained by adjusting DC1 and DC2. The bias point should be at the quadrature. (2) RF signal is input both from RF1 and RF2. The phase difference of 90 degrees should be maintained whlie you input the RF electrical signal.