The Newport PTS-DFB is a temperature-stabilized laser light source module built around a Distributed Feedback (DFB) laser diode operating at 1310 nm. It delivers a narrow spectral linewidth (<0.1 nm FWHM) with single-mode output and integrated optical isolation (≥30 dB) to protect against back reflections. The module locks wavelength across its operating range through proprietary temperature control, supports ±1 nm tuning with fixed output power, and provides 10 dB power adjustment capability. An internal signal generator enables modulation at 270 Hz, 1 kHz, and 2 kHz in constant intensity or power modes, plus optional 50 kHz coherence control at 10% modulation depth. Fiber-coupled output via FC/APC or FC/PC connectors on 9/125 µm PM or standard single-mode pigtails accommodates both laboratory test setups and system integration. Stabilization requires 1 hour at 23 ±3.0°C ambient. Module supports multi-unit synchronization through central or external sync signals.
Technical Specifications
• Laser Type: Distributed Feedback (DFB) laser diode
• Operating Wavelength: 1310 nm region
• Spectral Linewidth: <0.1 nm FWHM; secondary modes ≥40 dB suppressed
• Wavelength Tuning Range: ±1 nm at constant output power
• Output Power Adjustment: 10 dB range with wavelength fixed
• Optical Isolation: ≥30 dB at center wavelength across operating temperature range
• Stabilization Time: 1 hour at 23 ±3.0°C ambient
• Operating Temperature: 10 to 35 °C
• Storage Temperature: -10 to 55 °C
• Humidity: <80%, non-condensing
– Key Features
• Wavelength stabilization via tight temperature control locks peak output across case temperature variations
• Internal optical isolator protects DFB diode from back reflections
• Coherence control: 50 kHz sine wave, 10% modulation depth, switchable during operation
• Internal modulation generator: 270 Hz, 1 kHz, 2 kHz standard test tones in constant I or P mode
• Multi-module synchronization via central sync or external signal input
• Polarization-maintaining (PM) fiber pigtail option (9/125 µm, slow-axis aligned panda fiber for butterfly package)
• Standard single-mode fiber alternative
– Typical Applications
• Single-channel reference light source for stable optical testing
• Precision wavelength reference for experimental optical systems
• Modulated source for detector and receiver characterization
• Multi-channel test setups requiring synchronized laser modules
– Compatibility & Integration
• Optical output: FC/APC or FC/PC connectors
• Package options: DFB Butterfly and TO-can configurations
• Supports external synchronization for coordinated multi-module operation
