The all new 6700 Velocity™ laser is a complete redesign of our well established Velocity laser series. The world’s most advanced tunable diode laser system, Velocity offers complete single mode tuning across its entire output spectrum with no mode hops and closed loop wavelength position control.
The integrated wavelength monitoring system allows the user to dial up a wavelength with 0.01 nm accuracy and scan across all or part of the tuning range. We’ve enlarged the drop tested and shock proof cavity housing, added more powerful temperature control, and introduced our unique Magnetic Damping to the 6700 Velcoity. This means we can now bring you higher power output with an even further reduced linewidth. That’s more power with even greater precision.
Optional 35 dB isolation and fiber coupling (including isolation) are available for all TLB-6700 Velocity lasers. For our fiber coupled version, we now provide a permanently aligned fiber fixed in place. The isolator and coupling are within the temperature controller and shock proof housing. The fiber used is steel jacketed and fixed, avoiding damage and retaining optimum coupling efficiency. This new design increases efficiency and maintains power stability.
TLB-67XX fiber coupled version.
It’s not only the ease of use and optical performance that makes the Velocity exceptional. Nothing about the Velocity laser is typical. New Focus specifications are guaranteed.
Tuning Range
This is not the coarse tuning range. There is no coarse tuning, just smooth mode hope free tuning. Change the wavelength, and the laser will not mode hop.
Wavelength Stability
Wavelength stability is guaranteed to <1 pm/°C in operating environment temperature.
Stability
Keeping a laser stable for 5 µsec might be good enough for a typical laser but New Focus linewidths are measured over 50 milliseconds and are guaranteed to be less than 200 kHz.
Constant Power or Constant Current Operation
The 6700 has 2 operating modes. Constant current ensures complete mode hop free tuning across the entire tuning rnage. Constant power mode adjusts the current in the laser as you tune so you keep the power output smooth. This is the only time a mode hop can occur depending on the power level set by the user.
Operating Temperature
The laser operating temperature is 15° to 35°C
Beam Size
Beam size is less than 3 mm x 1 mm but varies per model. Call us if you need to know the exact dimensions.
TLB-6700 Velocity Laser Performance
Linewidth
ASE
| Specifications1 |
Value |
Comments |
| Linewidth |
≤200 kHz |
Integrated over 50 ms |
| Resolution- Coarse Tuning |
0.01 nm |
Wavelength readout on controller front panel. |
| Typical Wavelength Resetability |
<0.03 nm |
|
| Fine-Frequency Modulation Bandwidth |
>100 Hz
2 kHz |
100 GHz amplitude
>20 GHz amplitude |
| Modulation Bandwidth, Current |
100 MHz
1 MHz |
Direct to diode current modulation
Current modulation via controller |
| Options |
Comments |
| Fiber Coupled (-P)* |
>30% efficiency for models 6704, 6716
>35% efficiency for model 6721
>50% efficency for models 6711, 6712, 6718, 6724, 6725, 6726, 6728, and 6730 |
| Permanently coupled fiber, steel jacketed |
| FC/APC, PM, Panda, 1m length |
| Isolator (-OI) |
35 dB typical isolation.
70 dB available as a custom (will include removable fiber patchcord, FC/APC, PM, panda, 1m length).
Isolation may vary by wavelength. |
*Fiber tip is not covered under warranty
| Model |
Mode-Hop Free Tuning Range2 |
Typical Power Output(Free space) |
Max Tuning Speed |
Mode-Hop Free Fine Tuning Range |
| TLB-6704
|
635-638 nm3 |
10 mW @ 638 nm |
5 nm/s |
>80 GHz (110 pm) |
| TLB-6711
|
729-739 nm4 |
20 mW @ 737 nm |
8 nm/s |
>80 GHz (140 pm) |
| TLB-6712
|
765-781 nm |
50 mW @ 780 nm |
8 nm/s |
>80 GHz (150 pm) |
| TLB-6716
|
838-853 nm |
15 mW @ 845 nm |
10 nm/s |
>60 GHz (150 pm) |
| TLB-6718
|
945-975 nm |
30 mW @ 960 nm |
10 nm/s |
>50 GHz (160 pm) |
| TLB-6721
|
1030-1070 nm6 |
30 mW @ 1060 nm |
12 nm/s |
>50 GHz (190 pm) |
| TLB-6724
|
1270-1330 nm |
30 mW @ 1300 nm |
15 nm/s |
>50 GHz (290 pm) |
| TLB-6725
|
1390-1470 nm5 |
45 mW @ 1450 nm |
15 nm/s |
>30 GHz (200 pm) |
| TLB-6726
|
1470-1545 nm |
15 mW @ 1470 nm |
15 nm/s |
>30 GHz (210 pm) |
| TLB-6728
|
1520-1570 nm |
30 mW @ 1550 nm |
20 nm/s |
>30 GHz (240 pm) |
| TLB-6730
|
1550-1630 nm |
30 mW @ 1600 nm |
20 nm/s |
>30 GHz (260 pm) |
1Specifications are subject to change.
2See tuning curves for typical power vs. wavelength. Contact New Focus for custom wavelengths.
3635-639 nm extended wavelength range available.
4Any 10 nm wavelength range within 725-741 nm available. Call New Focus for specs and custom quote.
5Any 80 nm wavelength range within 1390-1490 nm available. Call New Focus for specs and custom quote.
6Temporarily unavailable.
