The Wandel & Goltermann OLS-15 is a dual Fabry-Pérot laser source engineered for field testing and verification of single-mode and multi-mode fiber optic networks. It delivers stable optical signals at 1310 nm and 1550 nm with adjustable output power and automatic wavelength detection, enabling rapid attenuation measurements without manual mode switching. The instrument combines rugged, shock-proof construction with lightweight portability—weighing approximately 250 grams—making it suitable for on-site telecommunications and data communication system measurements.
Technical Specifications
• Optical Source: Dual FP (Fabry-Pérot) laser
• Wavelengths: 1310 nm (single mode), 1550 nm (multi-mode)
• Output Power: -7 dBm nominal; adjustable -5 dBm to 0 dBm
• Output Stability: ±0.05 dB at constant temperature
• Spectral Width (FWHM): <5 nm at both 1310 nm and 1550 nm
• Modulation Frequency: 270 Hz, 1 kHz, 2 kHz, or CW
• Connector: Single port, universal interchangeable adapter system; FC/PC (PC and APC versions available)
• Display: LCD with backlight
• Operating Temperature: 0°C to 50°C
• Dimensions: 135 mm × 70 mm × 30 mm
• Weight: Approximately 250 g
– Key Features
• TWINtest capability automatically measures attenuation at both 1310 nm and 1550 nm simultaneously, reducing test time by half
• Automatic wavelength detection identifies transmitted wavelength and fiber type, eliminating manual configuration errors
• Automatic modulation detection simplifies fiber identification
• Splash-proof foil keypad and protectors for optical connectors
• Dual power options: 2 AA batteries (alkaline or rechargeable) with built-in charger, or external DC power source
• Battery life: Approximately 20 hours with alkaline batteries
– Typical Applications
• Field verification and commissioning of single-mode and multi-mode fiber networks
• Loss budget and attenuation measurements in telecommunications systems
• Cable continuity and installation testing
• Automated network diagnostics with paired optical power meters
– Compatibility & Integration
Designed for use with Acterna high-performance and pocket-sized optical power meters. Compatible with Acterna OLP optical power meter for enhanced TWINtest and automatic wavelength detection functionality.
















