Features

• C- and L-Band Operation Range
• 300-Pin MSA Transponder Compatible Footprint
• Titanium Indiffused X-Cut Lithium Niobate
• Low Drive Voltage
• Long-Term Bias Stability
• Telcordia GR-468 Compliant
• Integrated Photodetector

The LN81S-FC and LN56S-FC are zero-chirp LiNbO₃ intensity modulators with integrated photodiodes that are designed to be integrated into 300 pin MSA compatible transponders. Zero-Chirp modulators are fabricated from X-Cut Titanium Indiffused LiNb0₃, which allows for both arms of the Mach-Zehnder interferometer to be symmetric. This symmetry ensures that the modulated output of the intensity modulator is not also shifted in phase/frequency (chirped). A chirped signal will be spectrally broadened, which leads to greater chromatic dispersion and limits the WDM channel separation. Zero-Chirp intensity modulators are ideal for use in metro and long-haul DWDM applications requiring less than a 2 dB power penalty for ±1,200 ps/nm dispersion. The integrated photodetector can be used for optical power monitoring and modulator bias control, which eliminates the need for an external fiber tap. 

The two X-Cut LiNbO3 intensity modulators available online are 10 GHz devices with a PM input fiber pigtail and an SM output fiber pigtail. Both are terminated with FC/PC connectors. The PM fiber is keyed to the slow-axis which is also aligned to the extraordinary mode.

For more information on custom configurations (i.e., fiber type, connectorization, etc.) and quotes, please contact Technical Support.

Note: The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.

^a The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.
^b Pseudo Random Binary Sequence
^c Half-Wave Retardation DC Voltage
^d End of Life

RF Modulation Input: SMP RF Connector

Features

• C- and L-Band Operation Range
• 300-Pin MSA Transponder Compatible Footprint
• Titanium Indiffused X-Cut Lithium Niobate
• Low Drive Voltage
• Long-Term Bias Stability
• Telcordia GR-468 Compliant
• Integrated Photodetector

The LN62S-FC and LN82S-FC are 0.7 fixed-chirp LiNbO₃ intensity modulators that are designed to be integrated into 300 pin MSA compatible transponders. They feature integrated photodiodes. Fixed-Chirp modulators are fabricated from Titanium Indiffused Z-Cut LiNb0₃, which creates in an inequality in the push-pull phase shift between the two arms of the Mach-Zehnder interferometer. This results in a phase/frequency shift (chirp) in the output in addition to the intensity modulation. These fixed chirp modulators down-chirp the pulse, which can be useful when the optical fiber in the network has a positive dispersion coefficient. The down-chirped pulse traveling through an optical fiber with a positive dispersion coefficient will be compressed until a minimum is reached. Beyond that point the dispersion term will dominate. Since chirping the pulse increases the spectral width of the pulse, the chirped pulse will eventually be broader than an unchirped pulse traveling through the same optical fiber. These fixed chirp intensity modulators are ideal for applications requiring improved power penalty (less than two dB for +1600 ps/nm) performance over zero-chirp devices. The integrated photodetector can be used for optical power monitoring and modulator bias control, which eliminates the need for an external fiber tap. 

The 0.7 fixed-chirp Z-Cut LiNbO3 intensity modulators are 10 GHz devices with a PM input fiber pigtail and an SM output pigtail. Both are FC/PC-terminated. The PM fiber is slow-axis aligned. The RF input on the LN82S-FC has a field replaceable GPO connector.

For more information on custom configurations (i.e., fiber type, connectorization, etc.) and quotes, please contact Technical Support.

Note: The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.

^a The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.
^b Pseudo Random Binary Sequence
^c Half-Wave Retardation DC Voltage
^d End of Life

RF Modulation Input: SMP RF Connector

Features

• C- and L-Band Operation Range
• 300-Pin MSA Transponder Compatible Footprint
• Titanium Indiffused X-Cut Lithium Niobate
• Low Drive Voltage
• Long-Term Bias Stability
• Telcordia GR-468 Compliant
• Variable Optical Attenuator with 18 dB Attenuation Range

The LN83S-FC is a 0.7 fixed-chirp LiNbO₃ intensity modulator with a variable optical attenuator (VOA) that is designed to be integrated into 300 pin MSA compatible transponders. Fixed-Chirp modulators are fabricated from Titanium Indiffused Z-Cut LiNb0₃, which creates in an inequality in the push-pull phase shift between the two arms of the Mach-Zehnder interferometer. This results in a phase/frequency shift (chirp) in the output in addition to the intensity modulation. These fixed chirp modulators down-chirp the pulse, which can be useful when the optical fiber in the network has a positive dispersion coefficient. The down-chirped pulse traveling through an optical fiber with a positive dispersion coefficient will be compressed until a minimum is reached. Beyond that point the dispersion term will dominate. Since chirping the pulse increases the spectral width of the pulse, the chirped pulse will eventually be broader than an unchirped pulse traveling through the same optical fiber. These fixed chirp intensity modulators are ideal for applications requiring improved power penalty (less than two dB for +1600 ps/nm) performance over zero-chirp devices.

The LN383S-FC modulator has an integrated VOA that allows for active attenuation of the optical output power over an 18 dB range. This can be useful when efficient management of network imbalances in DWDM optical links is needed, or in other applications.

For more information on custom configurations (i.e., fiber type, connectorization, etc.) and quotes, please contact Technical Support.

Note: The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.

^a The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.
^b Pseudo Random Binary Sequence
^c Half-Wave Retardation DC Voltage
^d End of Life

RF Modulation Input: SMP RF Connector

Features

• C- and L-Band Operation Range
• 300-Pin MSA Transponder Compatible Footprint
• Titanium Indiffused Z-Cut Lithium Niobate
• Low Drive Voltage
• Telcordia GR-468 Compliant
• Optional Integrated Output Polarizer

The LN53S-FC and LN65S-FC are Titanium Indiffused Z-Cut LiNbO₃ phase modulators that are designed to be integrated into 300 pin MSA compatible transponders. Phase modulators provide chirp controll in high-speed data communications. The LiNbO₃ is also ideal for coherent communications, sensing, all-optical frequency-shifting, and data encryption applications.

The two Z-Cut LiNbO3 phase modulators available online are 10 GHz devices with SM fiber pigtails terminated with SC/PC or FC/PC connectors. The LN65S-FC has an integrated optical polarizer positioned before the output port of the device. The integrated polarizer is not included with the LN53S-FC. With no polarizer, the device is capable of supporting both optical modes, ordinary and extraordinary. Each mode will have a different modulation efficiency; the modulation efficiency of the extraordinary mode will be approximately a factor of three greater than the ordinary mode. For those interested in supporting only the extraordinary mode, the internal polarizer would be desirable. For more information on custom configurations (i.e., fiber type, connectorization, etc.) and quotes, please contact Technical Support.

Note: The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.

^a The modulator is designed for use in the 1550 nm window. Using the modulator at another wavelength (e.g., visible light) may cause a temporary increase in loss that is not covered under warranty. For instance, the increase in loss caused by shorter wavelengths can be reversed by heating the modulator to 50 °C for an hour.
^b End of Life
^c Half-Wave Retardation DC Voltage

RF Modulation Input: SMP RF Connector