Venturi TLB-8800


  • Up to 20,000 nm/s wavelength tuning
  • Programmable high frequency repetition rates
  • Programmable coherence control
  • Continuous wave and single longitudinal mode

The New Focus™ Venturi TLB-8800 swept-wavelength lasers deliver it all. They combine the best in tunability – ultrafast, ultrawide, and mode-hop-free – with low noise, high accuracy and repeatability. Because Venturi lasers are based on our award winning design, they are extremely dependable with OEM proven 24/7 reliability. Venturi lasers are ideal for fiber sensing, fiber-optics and silicon photonics testing, spectroscopy, laser seeding, and metrology.

The Venturi TLB-8800 is the only swept wavelength laser with up 20,000 nm/second tuning speed and high frequency repetition rates enabling true real-time measurements. Tuning speeds, repetition rates, dwell times, and wavelength ranges are adjustable to accommodate your unique needs. In addition to wavelength sweeping, the Venturi is capable of step tuning in 0.01 nm increments. The front panel offers easy access to RS232 and USB interfacing with use of a user friendly GUI.


Fiber sensing
Fiber optics testing
Silicon photonics testing
ModelMode-Hop Free
Tuning Range
Output PowerASEIntegrated Dynamic RangeWavelength Sweep Speed  
TLB-8800-H-CL 1520–1630 nm 10 dBm >40 dB >15 dB 2–2,000 nm/s  
TLB-8800-HSH-CL 1520–1600 nm 10 dBm >40 dB >15 dB 5,000–20,000 nm/s  
TLB-8800-L-CL 1510–1620 nm 2 dBm >70 dB >55 dB 2–2,000 nm/s  
TLB-8800-HSL-CL 1510–1600 nm 2 dBm >70 dB >55 dB 5,000–20,000 nm/s  
TLB-8800-H-E 1360–1460 nm 10 dBm >40 dB >15 dB 2–2,000 nm/s  
TLB-8800-H-O 1260–1340 nm 10 dBm >40 dB >15 dB 2–2,000 nm/s  
TLB-8800-HSH-O 1260–1340 nm 10 dBm >40 dB >15 dB 5,000–20,000 nm/s  
TLB-8800-L-O 1260–1340 nm 2 dBm >70 dB >55 dB 2–2,000 nm/s  
TLB-8800-HSL-O 1260–1340 nm 2 dBm >70 dB >55 dB 5,000–20,000 nm/s  
TLB-8800-H-S 1420–1520 nm 10 dBm >40 dB >15 dB 2–2,000 nm/s  
TLB-8800-H-850 835–850 nm 5 dBm >40 dB N/A 5–1,000 nm/s  
Power Stability (1 hr) ±0.01 dB  
Power Repeatability ±0.01 dB  
Power Flatness, typical <±4%   
Wavelength Stability (1 hr) ±0.003 nm  
Absolute Wavelength Accuracy 0.03 nm  
Wavelength Repeatability  0.010 nm  
Tuning Mode Swept or Step  
Tuning Speed Flatness, typical <±5%  
Side Mode Suppression Ratio (SMSR) >50 dBc  
Relative Intensity Noise (0.1–5 GHz), typical <-145 dB/Hz  
Coherence Length in Swept Mode, coherence control off >4 km  
Linewidth, coherence control on2 >150 MHz  
Scan Repetition Rate5

>5 Hz
(100 nm scan @ 2,000 nm/s for standard model)
>30 Hz 
(80 nm scan @ 10,000 nm/s for high speed model)

Step Size Resolution, step mode 0.01 nm  
Wavelength Resolution 1 pm  
Fiber Optic Connector FC/APC
Fiber Type SM or PM
User Interface RS232, USB
Power Requirement 85–265 VAC (47–63 Hz), power consumption
Environment Temperature, operating 15-40⁰C  
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. Coherence control is user adjustable.
3. Scan repetition rate is user adjustable by programming dwell time, sweep speed, and wavelength tuning range.

Venturi TLB-8800 Dimensions

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