The Thin Film Lithium Niobate Fiberoptic Modulators (TLNM) series offers a low driving voltage of 3.5V and broadband operation up to 110 GHz, delivering exceptional efficiency and performance over traditional Lithium Niobate modulators. Leveraging thin-film LiNbO₃ technology, its reduce size waveguides optimize RF-to-optical conversion, making it ideal for ultra-high-frequency electrical-to-optical applications. A built-in bias control section with a micro-heater and photodetector ensures stable optical biasing via advanced feedback circuitry. High-speed modulation is facilitated through an SMA connector, with bias control applied via pins, while an optional automatic bias controller provides enhanced stability. Custom designs are available to meet specific application needs.
| Name | Model | Description | Parameter | Price |
|---|
● X-Cut Thin-Film LiNbO3 Waveguides
● Operating Wavelength at 1530 - 1610 nm
● Bandwidth in Excess of 65 GHz
● Low Drive Voltage
● Single-End Drive(Optional)
Product Specifications (Unless otherwise specified, all tests are conducted at 25°C)
Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
Operating Bandwidth | S21 | Starting from 2 GHz | 40 | GHz | ||
Return Loss | S11 | -10 | dB | |||
Operating Wavelength | λ | 1550 | nm | |||
Insertion Loss | IL | 1550 nm CW, 0 dBm | 4 | 4.5 | 5 | dB |
Extinction Ratio | ER | 20 | dB | |||
Half-Wave Voltage | Vπ | 1550 nm CW, f = 50 kHz | 3 | 3.5 | V |
Maximum Absolute Ratings
Parameter Name | Symbol | Rated Value | Unit |
Input Optical Power | Ps,o | 23 | dBm |
Input Optical Return Loss | Ps,rf | 23 | dBm |
Thermoelectric Cooler Voltage | VH | ±8 | V |
Operating Temperature | TW | -40 ~ +85 | °C |
Storage Temperature | TS | -40 ~ +85 | °C |
Dimensions (mm)

Pin definitions
Pin | Symbol | Note |
RF Port | RFIN | 1.85 mm connector |
Optical Fiber Input | OPIN | FC/APC, PMF |
Optical Fiber Output | OPOUT | FC/APC, SMF |
DC Bias Line 1 | PIN1 | TEC Positive |
DC Bias Line 2 | PIN2 | TEC Negative |
DC Bias Line 3 | PIN3 | Output MPD Positive |
DC Bias Line 4 | PIN4 | Output MPD Negative |
DC Bias Line 5 | PIN5 | / |
● Digital Transmission
● Analog Transmission
● High Frequency Fiber Optic Links
● Delay Lines Telemetry Systems