XTRA –High power single-frequency OEM Laser
- Up to 500 mW @ 785nm
- Single-frequency operation
- Typical linewidth < 10 MHz
- > 40 dB ASE suppression
- Great power and frequency stability
- Integrated optical isolator (35 dB)
- Near Gaussian beam profile (M² < 1.7)
- Embedded micro controller
The XTRA provides three top features from one single unit: Gaussian beam profile, single-frequency operation and high output power. Incoherent ASE is suppressed by more than 40 dB, turning the XTRA into the ideal choice for demanding Raman applications depending on a high signal-to-noise ratio. The integration of a high quality optical isolator as a standard feature ensures long term rock solid performance of the XTRA.
Technical Information
Technical Information
785 nm is the standard wavelength of the XTRA laser source. Further wavelengths like 660 nm are under development.
Main specifications
| Wavelength | 785 nm |
|---|---|
| Power (free-beam) | Up to 500 mW |
| Long term power drift (10 h) | < 5 % |
| Spectral linewidth (typ.) | < 10 MHz |
| ASE suppression (typ.) | > 40 dB |
| Long term frequency drift (10 h) | < 1 cm-1 / 30 GHz |
| Optical isolation | 35 dB (internal) |
| Spatial mode | TEM00, M² < 1.7 |
| Beam diameter (typical @ 1/e²) | 2.2 mm |
| Divergence (typical) | < 1 mrad |
| Fiber coupling efficiency (typ.) | 50 % |
| Focusability | < 1 µm (depending on optics) |
| Polarization | Typical 500:1, linear, 45° clockwise with respect to base plate |
| Operating voltage | 90 – 260 VAC |
| Operating ambient temperature range | 15..35 °C |
| Dimensions laser head (L x W x H) | 170 x 122 x 85 mm³ |
| Dimensions power supply (L x W x H) | 175.1 x 179 x 69.5 mm³ |
For complete spec table please refer to the XTRA brochure.
XTRA – typical emission spectrum showing more than 40dB ASE suppression.
XTRA – excellent frequency stability (≪ 1GHz).
XTRA – excellent power stability (≪ 5 %).
Options & Related Products
Options & Related Products
Options:
- Fiber Option – FiberDock XTRA
To provide full flexibility for OEM integrators, single-mode fiber-coupling is available on demand. Contrary to competing multimode lasers, the XTRA achieves 250 mW output from a single-mode or even polarization-maintaining fiber. The fiber add-on consists of TOPTICA's patented FiberDock and an additional 35 dB optical isolator. Thus, highest coupling efficiency combined with best wavelength stability is guaranteed. - Fiber output collimator – FiberOut
Some applications demand a fiber-coupled laser and beam collimation at the end of a fiber. To provide a comprehensive solution, the FiberOut turns the divergent beam at the fiber end into a collimated beam again (0.5 mm - 4 mm @ 1/e² CA: 4.8 mm). FC/APC connectors are standard, others can be accommodated.
Related Products:
Technical Drawings
Applications
Applications
- Raman microscopy / spectroscopy
- Chemical process control
- Optical probing
- Laser tweezer
- Drug screening
- High Resolution Raman Microscopy
- An XTRA Laser Source for Raman Spectroscopy
XTRA – data taken by TOPTICA customers: Raman spectrum of acetylsalicyacid.
