The Agilent/Keysight 81651A Laser Source Module is a single-wavelength Fabry-Perot laser module designed for use with optical power meter modules. This module is integral for performing insertion loss, optical return loss, and PDL measurements on broadband components and fiber optic systems. Its design ensures insensitivity to back reflections and provides stabilized output for both short-term and long-term applications. This module is an obsolete product.
### Technical Specifications
* **Laser Type:** Fabry-Perot Laser Diode
* **Center Wavelength:** 1550 nm ± 15 nm
* **Output Power:** > 0 dBm (1 mW)
* **CW Power Stability:**
* Short Term (15 min): < ± 0.005 dB (typical)
* Long Term (24 h): ± 0.03 dB (typical)
* To back reflection (RL ≥ 14 dB): ± 0.003 dB (typical)
* **Spectral Bandwidth (rms):** < 4.5 nm
* **Fiber Type:** Single-mode 9/125 µm
* **Internal Digital Modulation:**
* Modulation Frequencies: 270 Hz, 330 Hz, 1 kHz, 2 kHz, and free selection from 200 Hz to 10 kHz
* Output Signal: Pulse shaped, 50% duty cycle
* **Output Attenuation:** 0 dB to 6 dB in 0.1 dB steps
* **Coherence Control:** Internal coherence control for linewidth broadening### Physical Characteristics* **Dimensions (H x W x D):** 75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”)
* **Weight:** 0.5 kg### Environmental and Operational Specifications* **Operating Temperature:** 0°C to +45°C
* **Humidity:** Non-condensing
* **Warm-up Time:** 60 minutes
* **Storage/Shipping Temperature:** -40°C to +70°C### Safety Classifications* **International:** Class 1 according to IEC 60825-1 (2001)
* **USA:** Class I according to 21 CFR 1040.10 (1995)### CompatibilityThis module is designed to be used in conjunction with optical power meter modules within a compatible mainframe system. Specific mainframe compatibility details would typically be found in the user's guide for the specific mainframe being utilized. The 81651A is part of a series of laser source modules, including the 81650A, 81652A, 81654A, 81655A, 81656A, and 81657A.Why Choose Aumictech for the Agilent/Keysight 81651A Laser Source Module?
At Aumictech, we specialize in sourcing and validating high-end optical test equipment. Whether you need a reliable 1550nm Fabry-Perot laser source, precise power stability for critical measurements, or robust modules insensitive to back reflections, our team ensures the Agilent/Keysight 81651A delivers maximum performance for your application.
