Vortex Plus Tunable External Cavity Diode Lasers
The New Focus Vortex Plus tunable external cavity diode laser delivers true continuous mode-hop-free tuning and is Spectra-Physics' highest performance precision finely tunable diode laser.
Manufacturer: Spectra-Physics — USA
Overview
The New Focus Vortex Plus tunable external cavity diode laser delivers true continuous mode-hop-free tuning and is Spectra-Physics' highest performance precision finely tunable diode laser. Its Littman-Metcalf cavity configuration provides exceptional stability, a wide piezo mode-hop-free tuning range, and narrow linewidth, while the Star-Flex actuation design provides stiff, reproducible rotational motion without translation. Vortex Plus lasers are used across quantum physics research, including laser cooling and atomic clocks, as well as spectroscopy, metrology, and interferometry.
Star-Flex Actuation
Thermal and finite element analysis led to the Star-Flex design, which provides stiff, reproducible rotational motion for wavelength tuning without any translation, combined with magnetic damping for the highest stability.
Vortex Plus Controller
The TLB-6800-LN laser controller allows users to fine tune wavelength or bias current from the front panel or via USB/RS-232, with a built-in function generator for piezo sweeping.
Common Specifications
| Specification | Vortex Plus Tunable External Cavity Diode Lasers |
|---|---|
| Wavelength Range | 455–1630 nm (model dependent) |
| Output Power | 8–70 mW (model dependent) |
| Linewidth | <200 kHz (50 ms integration time) |
| Wavelength Stability | 2 pm (over 1 hour ±2°C) |
| Power Stability | <1% (over 1 hour ±2°C) |
| Longitudinal Mode | Single |
| Transverse Mode | TEM00 |
Model Comparison
| Specification | TLB-6804 | TLB-6813 | TLB-6821 | TLB-6828 |
|---|---|---|---|---|
| Wavelength | 632.5–640 nm | 765–781 nm | 1030–1085 nm | 1520–1630 nm |
| Mode-Hop-Free Tuning Range | >120 GHz (160 pm) | >100 GHz (200 pm) | >60 GHz (230 pm) | >50 GHz (400 pm) |
| Free-Space Output Power | 8 mW @ 638 nm | 70 mW @ 780 nm | 70 mW @ 1064 nm | 30 mW @ 1550 nm |
| Fiber-Coupled Output Power | 3 mW @ 638 nm | 35 mW @ 780 nm | 24.5 mW @ 1064 nm | 15 mW @ 1550 nm |