Dual Polarisation Optical Multi-Format Transmitter
Precision Conversion for Advanced Coherent Signaling
The Optical Multi-Format Transmitter (OMFT) is a state-of-the-art, fully integrated...
Dual Polarisation Optical Multi-Format Transmitter
High-Bandwidth IQ Modulation for Advanced Optical Transmission with OMFT Optical Multi-Format Transmitter
Precision Conversion for Advanced Coherent Signaling
The Optical Multi-Format Transmitter (OMFT) is a state-of-the-art, fully integrated optical frontend designed to convert high-speed electrical RF signals into Dual Polarisation (DP) IQ modulated optical signals. Whether utilised as a golden reference transmitter or a standard source for comprehensive receiver characterisation, the OMFT delivers industry-leading signal integrity. It is the perfect engine for researchers developing next-generation optical links, providing the high-bandwidth performance required to test complex modulation formats at symbol rates exceeding 120 GBaud.
Automated, Format-Independent Bias Control
A standout feature of the OMFT is the integrated, in-house developed Automatic Bias Control (ABC). This system is entirely independent of RF amplitude and modulation formats, allowing users to apply customised RF input signals—such as QPSK, 16-QAM, or 64-QAM—without the need for manual adjustments. By ensuring the modulator consistently operates at the optimal bias point, the OMFT guarantees long-term stability and seamless switching between modulation schemes. This “plug-and-play” automation eliminates the common pitfalls of modulator drift, allowing engineers to focus on data analysis rather than hardware maintenance.
Stable Operation Across Multiple Modulation Schemes
The OMFT is optimised for seamless operation across a wide range of advanced modulation formats, enabling effortless switching between different signal types without recalibration. By guaranteeing stable biasing and precise IQ modulation, it supports accurate testing of coherent receivers, dual-polarisation transmission systems, and high-speed optical links. This makes the OMFT a powerful and future-ready multi-format optical transmitter solution for both R&D laboratories and production test environments.
Understanding Dual Polarisation Optical Multi-Format Transmitter
In today’s fast-evolving optical communication ecosystem, precision, speed, and flexibility are non-negotiable. The OMFT Optical Multi-Format Transmitter is a fully integrated optical front-end platform that translates differential electrical RF signals into modulated optical outputs, supporting both single and dual-polarisation transmission. Its Mach-Zehnder modulator-based architecture, built-in RF amplifiers, and automated bias control system make it ideal for coherent receiver characterisation, network component testing, and experimental modulation scheme development.
Whether you’re developing high-capacity optical transceivers or running advanced system simulations, the OMFT ensures repeatability, signal purity, and bandwidth headroom, all in a compact, rack-mountable form factor.
Technical Specifications
| Parameter | Specification |
| Wavelength Range | 1525 – 1570 nm |
| Frequency Range | 191.1 – 196.25 THz |
| Bandwidth (EO) | Class 40: typ. 45 GHzClass 60: typ. 60 GHz |
| Polarization Imbalance | <1 dB |
| Gain Imbalance | <1 dB |
| DC Extinction Ratio | >18 dB |
| IQ Offset | < -20 dB |
| RF Connectors | 1.85 mm, female, differential |
| Insertion Loss | <15.5 dB at max. transmission |
| Output Power Range | 8 – 19 dBm |
| Control Interfaces | USB, Ethernet, web server GUI |
| Operating Temperature | +10°C to +35°C |
| Dimensions | 483 x 90 x 275 mm (19” x 3.6” x 10.9”) |
| Power Supply | 100-240 VAC, 50/60 Hz |
Key Features and Advantages
Engineered for Next-Gen Optical Modulation
• High Electro-Optic Bandwidth – Available in Class 80 (>80 GHz, 170 GBaud), Class 60 (60 GHz, >120 GBaud), and Class 40 (>40 GHz, 96 GBaud), supporting present and future transmission standards up to 800G.
• Automated Bias Control – Closed-loop system maintains optimal operating points independent of RF input, eliminating manual alignment and ensuring consistent performance.
• Zero Noise Mode – Suppresses calibration signals after setup, guaranteeing distortion-free modulation for spectral characterisation and phase-sensitive testing.
• Flexible Laser Options – Operate with a built-in narrow-linewidth source or connect an external tunable laser for maximum integration flexibility.
• Remote Control & Touchscreen GUI – Manage via USB, Ethernet, or built-in web server; intuitive touchscreen interface streamlines local and remote operation.
• Device-Specific Calibration – Preloaded correction files for gain, phase, and IQ offset enable pre-distortion techniques for superior linearity and modulation fidelity.
Why It Delivers More
Unmatched Bandwidth for High-Speed Networks
• Covers baud rates from 96 GBaud to 170 GBaud.
• Ideal for 400G, 800G, and beyond in telecom R&D and system testing.
Consistent & Reliable Operation
• Closed-loop bias stabilisation ensures long-term stability during repetitive sequences.
• “Zero Noise” mode delivers clean signals for coherent experiments.
Flexible Integration
• Compact, rack-mountable design for benchtop or production test setups.
• Compatible with a wide range of lasers and RF signal generators.
Ready for Research & Manufacturing
• Supports coherent transmission, interoperability, and component validation.
• Accelerates PIC transceiver development, BER testing, and quality control workflows.
Enabler for Digital Twin Prototyping
• Models super-channel and multi-carrier scenarios.
• Validates DSP algorithms for coherent receivers.
• Integrates seamlessly with tunable lasers and optical filters in modular testbeds.
Applications Across Industries
Coherent Receiver Testing
The OMFT functions as a reference transmitter for precise testing of coherent optical receivers. Whether you’re testing QPSK or 256-QAM systems, the OMFT delivers stable, high-quality IQ signals that mimic real-world operating conditions.
Advanced Modulation Format Development
From telecom operators to photonics researchers, the OMFT is widely used to generate and study advanced formats like:
- QPSK (Quadrature Phase Shift Keying)
- 16-QAM (Quadrature Amplitude Modulation)
- 64/256-QAM for ultra-high-speed networking
These modulation schemes are essential for increasing spectral efficiency and expanding bandwidth in next-generation fibre optic systems.
System Design for Multi-Channel Transmission
Supporting both single and dual-polarisation formats, the OMFT enables:
- Emulation of realistic multi-channel transmission
- Characterisation of polarisation-multiplexed signals
- Testing of wavelength division multiplexing (WDM) components
This makes it a critical instrument for network architecture validation.
Integration with AWGs and PPGs
Engineers can easily connect the OMFT to Arbitrary Waveform Generators (AWG) and Pulse Pattern Generators (PPG). This allows:
- Injection of pre-distorted or custom signals
- High-precision simulations of optical communication scenarios
The result: More predictable outcomes and faster development cycles.
Optical Component Characterisation
The OMFT is invaluable for validating:
- Optical transceivers and modulators
- Amplifiers and filters
- Photonic integrated circuits (PICs)
Why Choose United Spectrum Instruments?
United Spectrum Instruments is the official distributor for ID Photonics GmbH in India, providing full support for the OMFT Optical Multi-Format Transmitter.
Proven Expertise in Photonics and Optical Instrumentation
With years of experience serving academic institutions, industrial R&D labs, and telecommunication companies across India, we bring:
- Localised technical support
- Fast lead times
- Integration assistance
Access to Global Innovations
Our partnership with ID Photonics GmbH, Germany, ensures our customers gain early access to next-generation optical test instruments trusted by global technology leaders.
Seamless Procurement and Support
From pre-sales consultation to post-sales training and service, United Spectrum Instruments ensures a smooth and reliable experience for your optical testing needs.
FAQs
What modulation formats does the OMFT support?
The OMFT supports a wide range of advanced formats including QPSK, 16-QAM, 64-QAM, and 256-QAM. Its bandwidth capabilities enable reliable signal generation for both current and future standards in high-speed optical communication.
Can I use the OMFT with my existing AWG or PPG?
Yes. The OMFT is designed for seamless integration with most commercially available Arbitrary Waveform Generators and Pulse Pattern Generators. It includes differential RF inputs and supports high-speed electrical signal injection.
Is automated BIAS control really independent of the RF input?
Absolutely. The OMFT features closed-loop bias point control that operates regardless of the modulation format or RF power level, ensuring stability and removing the need for manual recalibration.
What’s the benefit of the zero-noise function?
The zero-noise function mutes calibration signals after automatic bias setup, ensuring they don’t interfere with your actual test signal. This is crucial for high-fidelity testing and minimising signal distortion.
Does the OMFT include a built-in laser?
Yes. The OMFT is available with an optional built-in narrow linewidth laser or can be used with an external laser source, offering flexibility for different lab or production setups.
GET IN TOUCH WITH US
Have a Project in Mind ? Let’s Talk
FAQs
What modulation formats does the OMFT support?
The OMFT supports a wide range of advanced formats including QPSK, 16-QAM, 64-QAM, and 256-QAM. Its bandwidth capabilities enable reliable signal generation for both current and future standards in high-speed optical communication.
Can I use the OMFT with my existing AWG or PPG?
Yes. The OMFT is designed for seamless integration with most commercially available Arbitrary Waveform Generators and Pulse Pattern Generators. It includes differential RF inputs and supports high-speed electrical signal injection.
Is automated BIAS control really independent of the RF input?
Absolutely. The OMFT features closed-loop bias point control that operates regardless of the modulation format or RF power level, ensuring stability and removing the need for manual recalibration.
What’s the benefit of the zero-noise function?
The zero-noise function mutes calibration signals after automatic bias setup, ensuring they don’t interfere with your actual test signal. This is crucial for high-fidelity testing and minimising signal distortion.
Does the OMFT include a built-in laser?
Yes. The OMFT is available with an optional built-in narrow linewidth laser or can be used with an external laser source, offering flexibility for different lab or production setups.
WHAT WE OFFER
Reliable Engineering Solutions for Modern Manufacturing
Imaging Cameras & Wavefront Sensors
Laser Sources
Dust & Fume Extractors
Industrial Laser Systems
Optical Communication Systems
Optical Sensors & Detectors
