Laser Diodes & Sources
1270-1650nm Ultra Broadband Light Source
The UBLS series of Fiber Coupled Broadband Light Source delivers stable, single-mode light output across an extensive wavelength range of over 350 nm at greater than -35 dBm/nm, with minimal polarization. The UBLS integrates multiple broadband lasers. When equipped with all wavelength peak options (1300 nm, 1400 nm, 1480 nm, 1550 nm, 1620 nm), a single unit can cover all communication bands: O, E, S, C, and L. External modulation enables lock-in amplifiers for highly sensitive measurements, while the low polarization ensures accurate, consistent readings for high-PDL components.

Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
Part number: UBLS-134A56213
Configuration: Standard · 1310nm: Yes · 1400nm: Yes · 1480nm: Yes · 1550nm: Yes · 1620nm: Yes · Modulation: No · Fiber Type: SM28 · Connector: FC/APC
System integration
Integration and compatibility
Use these checks to connect 1270-1650nm Ultra Broadband Light Source to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optical interface and fiber
- Fiber Type: SM28, PM1550 · Connector: FC/APC
- Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Technical FAQ
Integration questions for 1270-1650nm Ultra Broadband Light Source
Which fiber and connector does the 1270-1650nm Ultra Broadband Light Source use?
Fiber Type: SM28, PM1550 · Connector: FC/APC. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Nearby series comparison
Compare 1270-1650nm Ultra Broadband Light Source with the closest available models in the Laser Diodes & Sources family.
| Selection parameter | 1270-1650nm Ultra Broadband Light Source (current) | 1064nm Fiber Coupled FP Laser Source - 50mW | 1270nm DFB Butterfly Laser Diode - 10mW |
|---|---|---|---|
| Fiber type | SM28, PM1550 | Hi1060, PM980, 50/125 | SM28, PM1550, PM1310 |
| Connector / control | FC/APC | Non, FC/APC, FC/PC, Special | Non, FC/APC, Special |



