Velocity TLB-6700

WIDE AND FINE TUNABLE EXTERNAL CAVITY DIODE LASER

  • True mode-hop-free wide tuning
  • Exceptional stability with shock-proof and thermally insulated housing and magnetic damping technology
  • Fiber coupled option with robust, permanent fiber coupling
  • Easy-to-use wavelength control

The New Focus™ tunable external cavity diodes lasers lead the market with high performance, delivering true continuous mode-hop-free tuning over wide wavelength ranges. The Velocity TLB-6700 is our premier tunable diode laser system offering both wide and fine wavelength scanning. The laser cavity housing is shock proof and thermally insulated with active temperature control and incorporates our unique magnetic damping technology providing higher power, stability, and narrow linewidths.

The fiber coupled option includes a robust, permanently fixed fiber port for optimal coupling efficiency maintained across the wavelength tuning range. Both the isolator and coupling are within the laser housing to ensure the highest power stability.

The Velocity is operated using the TLB-6700-LN controller designed with low-noise analog circuits. The laser head is recognized upon startup, and optimum temperature, maximum current limit, and tuning range are automatically set. Current limits and safety shutoff features ensure maximum diode lifetime.

Integrated wavelength monitoring allows adjustment to within 0.01 nm, and piezo fine tuning provides even finer sub-picometer precision. External control and frequency locking are possible via analog input ports, and operation in both manual and remotely programmed modes is accessed via a USB interface.

Applications

Spectroscopy
Micro-cavity resonators
Quantum dots
 
ModelMode-Hop Free
Tuning Range2 (Wide)
Mode-Hope Free
Tuning Range (Fine)
Free-Space
Output Power
Fiber -Coupled
Output Power
Maximum
Tuning Speed
 
TLB-6702 407-412 nm >120 GHz (65 pm) 4mW @ 411 nm ** 5 nm/s  
TLB-6704 635-638 nm >80 GHz (110 pm) 8 mW @ 638 nm 2.5 mW @ 638 nm 5 nm/s  
TLB-6711 730-739 nm >80 GHz (140 pm) 20 mW @ 737 nm 10 mW @ 737 nm 8 nm/s  
TLB-6712 765-781 nm >80 GHz (150 pm) 50 mW @ 780 nm 25 mW @ 780 nm 8 nm/s  
TLB-6713 795-810 nm >80 GHz (150 pm) 20 mW @ 795 nm 10 mW @ 795 nm 8 nm/s  
TLB-6716 830-853 nm >60 GHz (150 pm) 50 mW @ 850 nm 15 mW @ 850 nm 10 nm/s  
TLB-6718 890-940 nm >50 GHz (160 pm) 15 mW @ 890 nm 5 mW @ 890 nm 10 nm/s  
TLB-6719 940-985 nm >50 GHz (180 pm) 40 mW @ 980 nm 15 mW @ 980 nm 10 nm/s  
TLB-6721 1030-1070 nm >50 GHz (200 pm) 60 mW @ 1064 nm 20 mW @ 1064 nm 10 nm/s  
TLB-6722 1045-1085 nm >50 GHz (200 pm) 40 mW @ 1080 nm 14 mW @ 1080 nm 10 nm/s  
TLB-6723 1070-1130 nm >50 GHz (280 pm) 30 mW @ 1110 nm 10 mW @ 1110 nm 10 nm/s  
TLB-6724 1270-1330 nm >50 GHz (290 pm) 30 mW @ 1300 nm 15 mW @ 1300 nm 15 nm/s  
TLB-6725 1390-1470 nm >30 GHz (200 pm) 45 mW @ 1450 nm 22.5 mW @ 1450 nm 15 nm/s  
TLB-6726 1420-1500 nm >30 GHz (210 pm) 20 mW @ 1480 nm 10 mW @ 1480 nm 15 nm/s  
TLB-6728 1520-1570 nm >30 GHz (240 pm) 30 mW @ 1550 nm 15 mW @ 1550 nm 20 nm/s  
TLB-6730 1550-1630 nm >30 GHz (260 pm) 30 mW @ 1600 nm 15 mW @ 1600 nm 20 nm/s  
TLB-6732 1700-1800 nm >20 GHz (260 pm) 10 mW @ 1780 nm ** 20 nm/s  
TLB-6736* 1975-2075 nm >20 GHz (260 pm) 2 mW @ 2030 nm ** 20 nm/s  
TLB-6740* 2350-2450 nm >20 GHz (360 pm) 4 mW @ 2400 nm ** 20 nm/s  
* Constant current mode only
** Contact sales for more information
 
 Value  
Linewidth <200 kHz (50 ms integration time) ;< 2.5 kHz (5 μs)  
Wavelength Stability 2 pm (over 1 hour ±2⁰C)  
Power Stability <1% (over 1 hour ±2⁰C)  
Wide Tuning Resolution 10 pm  
Fine Tuning Resolution3 0.01% of full PZT tuning range  
Fine-Frequency Modulation Bandwidth >100 Hz (100% amplitude)
2 kHz (20% amplitude)
 
Current Modulation Bandwidth DC-1 MHz (through controller)
50 kHz-100 MHz (directly to diode)4
 
Longitudinal Mode Single  
Transverse Mode TEM00  
Beam Pointing Stability <50 µrad (±2⁰C)  
Beam Size, typical 1-2 mm  
Beam Ellipticity, typical 1:1-2:1  
Polarization5 Vertical  
Optical Output6 Free-space, optically-isolated, fiber-coupled  
User Interface Controller front panel, USB  
Power Supply Requirement 100-240 VAC (50-60 Hz), power consumption < 170 W
Environment Temperature, operating 15-30⁰C  
Environment Temperature, storage 0-50⁰C  
Environment Humidity Non-condensing  

1. Due to our continuous product improvement program, specifications are subject to change without notice.
2. Motorized wide tuning and PZT fine tuning. Contact us for other available wavelengths and typical tuning curves.
    Wide tuning is mode-hope-free in constant current mode only.
3. Resolution is 10 mV in PZT (0.01% of full PZT tuning range) through controller front panel or command interface. When tuning PZT using an external voltage 
    source through External Frequency Modulation input, resolution is dependent on voltage source.
4. Current modulation directly to diode through laser head SMA port.
5. Free space (with and without isolator) output is vertically linearly polarized with respect to laser head base.
6. Optically-isolated option includes an integrated 35 dB optical isolator for free-space output with approximately 75% power transmission. Fiber-coupled option 
    includes isolator and permanently fixed Panda-type PM fiber with FC/APC connector for laser output. Wide-type alignment key aligned with the slow axis of the
    PM fiber. Dual stage isolation, other fiber types and connectors available upon request. Optically-isolated option unavailable for TLB- 6732. Fiber coupled option
    unavailable for TLB-6732, TLB-6736, and TLB-6740. External pre- aligned fiber coupling kit available for TLB-6702.

Velocity TLB-6700 Dimensions

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10 MHz Bandwidth