The New Focus 6427 is an External Cavity Diode Laser (ECDL) based on Littman-Metcalf design, delivering wavelength-agile performance across the C-band (1520–1570 nm). Engineered for precision metrology, component characterization, and wavelength-dependent testing, the 6427 combines 1 pm resolution tuning with mode-hop-free operation and active cavity stabilization. Output power remains flat within ±0.25 dBm across the full tuning range, enabling consistent optical experiments without power compensation.
Technical Specifications
• Wavelength Range: 1520–1570 nm
• Output Power: ≥ +6 dBm (peak); ±0.25 dBm flatness across range
• Wavelength Accuracy: 30 pm absolute; 5 pm repeatability
• Wavelength Resolution: 1 pm standard; 0.001 nm in high-resolution mode
• Tuning Speed: 100 nm/s
• Settling Time: < 100 ms
• Linewidth: Single-mode, narrow
• Cavity Stabilization: Active temperature control with shock resistance to 300 g
• Warm-up Time: Minimum 45 minutes
• Optical Interface: FC/APC single-mode non-PMF fiber
– Key Features
• Mode-hop-free tuning over wide wavelength ranges
• Anti-reflection-coated Fabry-Perot laser diode with diffraction grating frequency-selective output coupler
• Patented pivot-point cavity design for mechanical stability
• Ultra-low-noise current source for output power regulation
• Three operating modes: Track, Automated Step-Scan, and Interactive Step-Scan
• Front-panel power adjustment with factory-limited maximum current protection
• Minimal recalibration required (weeks to months)
• Rated for 24/7 continuous operation
– Typical Applications
• Optical component wavelength characterization and alignment
• Laser linewidth and spectral purity measurement
• Wavelength-dependent research in photonics and telecommunications
• Production testing of wavelength-sensitive devices
– Compatibility & Integration
• Remote control via GPIB (IEEE-488) and RS-232
• Handheld interface (optional) less than 4.5" × 9"
• Rack-mount kit included for laboratory integration
