NakuLaser Blog

 What I'm going to talk about today is 660nm 1800mW fiber laser system . It supports 3 working modes, CW/TTL/Analog. In TTL/Analog modulation mode, an external modulation signal needs to be connected. In addition, the Lock crystal head cannot be pulled out. External signal Mod Input, no need to connect in CW working mode. To adjust the output power by adjusting the working current: Turn the 'Adjustor' knob clockwise, when the current exceeds the minimum working current, the Laser indicator light turns green, and there is laser output at this time. When the 'Adjustor' is rotated clockwise to the end, it is the max working current and the max output power of the laser. In addition, the red STOP button is used for emergency stop, and it is not used under normal circumstances. The optic fiber can be customized. Here is 1000μm SMA905 interface fiber. 100μm to 1000μm fiber is optional, the coupling efficiency of different fibers will be somewhat different. The larger the...

 This is 690nm 800mW red laser source . 690nm laser is red semiconductor laser system, among the red laser, 690nm belongs to the longer wavelength laser. The laser power is adjustable from 0 to 800mW. Turn on the laser, rotate the button to adjust the laser power to the max. Let's check it now. The laser's test data report.    

It's a red  fiber coupled laser , wavelength is 685nm. There are 3 working mode,  CW and TTL/Analog modulation . When use modulation work mode, the laser need be inputed 0-5V signal at ‘Mode Input’ BNC interface. Let's check it.

This is 650nm red circle laser module . The voltage can be adjusted by the button, and the output power of the laser can be controlled by adjusting the voltage. The middle part is rotatable. By adjusting the distance of the laser lens by rotating the middle part, the laser focal length is adjusted and the thickness of the laser line is changed.

It’s a  RGB fiber coupled laser . The output power is   10W . There are 5 buttons on the power supply, The last two are spare, only for 5IN1 laser. Three working mode CW/TTL/Analog can be choosed. Let’s check it now.

SM Red Laser 635nm 150mW Single Mode Fiber Coupled Lase r  [Specifications] Product Name: 635nm Fiber Coupled Laser Lead Time: 1~3 weeks! Custom product available! Output Wavelength: 635nm Output Power: 150mW (at Laser head) Fiber Output power: Coupling efficiency is about 40% Fiber Type: SM fiber (Single Mode fiber) Fiber Core Diameter: 3.5μm~9μm Fiber Length：1m Interface Type: FC/PC, SMA905, FC/APC (choose) Spatial Mode: TEM00 Operating Mode: CW or Modulation Modulation:  0~30khz Analog or TTL Power Stability: <3% per 4 hrs Temperature Stabilizing: TEC Warm Up Time: <1 minutes MTTF(mean time to failure): 10,000 hrs Power Supply: Standard type power supply / Lab Adjustable power supply (Choose)

638nm Red Pigtailed Laser Fiber Laser Diode module 

This video is from CivilLaser, it's a red fiber coupled laser , the wavelength is 635nm, the output power is 12W, this semiconductor laser coupled with a optical fiber. Let's check it now.    

This laser is from CivilLaser, it’s a  fiber coupled laser , the wavelength is 655nm, the max output power is 2W, this  Semiconductor laser  coupled a 400μm fiber. Let’s check it now.

Diameter 40mm 650nm 100mW Red   Parallel Light Laser  Support customization This laser has the characteristics of small beam divergence angle, high parallelism, full circle spot and uniform brightness.  --  CivilLaser.com

638nm 1200mW Orange-red Laser Pointer High Power Diving Signal Light [Specifications] Wavelength: 638nm Output Power: 1.2W Security Level: Class Ⅳ Shell Material: Aviation aluminum Color: Black / Silver (optional) Circuit Control: 5V boost with reverse polarity protection Circuit Efficiency: Step-up conversion efficiency of 93% Laser Modes: Always bright and dazzling light Switch Mode: Self-locking light, close or touch change mode Spot Form: Dot Laser Beam Style: Continuous linear Spot Size: about at 5m<φ15-18mm Focusing Method: Focusing (Rotate the threaded front cover) Diving Level: 5m diving Battery Type: 1*18650 rechargeable battery (Not included) Battery Direction: the positive direction of the light, the negative tail hair switch Operating Current: 3.7V @ 4.9A Operating Voltage: DC = 3.7V Starting Voltage: DC = 2.5V Operating Temperature: -10 ℃ ~ +60 ℃ Storage Temperature: -10 ℃ ~ +40 ℃ Weight: 240g(One laser pointer)

632.8nm Red He-Ne Laser Dot Laser Moudle Laser Source [Features] Good monochromatic, good coherence and good direction,high brightness [Applications] 1. Teaching experiment 2. Precision metrology and measurement 3. Laser communication 4. Laser phototype 5. Clinical medical 6. Agricultural breeding and other education 7. Scientific research 8. Production area [Specifications] Product Name: 632.8nm He-Ne Laser Wavelength: 632.8nm Operating Voltage: 4~6mA Output Power: >2mW Laser Tube Size: Φ35*250mm Light Polarity: Light out of the cathode Continuous Working Time: >8 hours Rated Voltage: 220V±22V AC Rated Frequency: 50Hz Rated Input Power: <20W Light Exit Hole: 4.2mm Spot Size at 10cm: 1mm Spot Size at 1m: 2mm Spot Size at 3m: 6mm Spot Size at 5m: 12mm Spot Size at 10m: 24mm Ambient Temperature: -10~40℃ Relative Humidity: ≤80% Laser Size: 300(L)*62(W)*82(H) Weight: 1.5kg [Cautions] 1. He-Ne laser beam is high brightness, highenergy laser beam, It is forbidden to aim...

From checkout counters at supermarkets to light shows at concerts, lasers are everywhere, and they're a much more efficient light source than incandescent bulbs. But they're not cheap to produce. A new Northwestern University study has engineered a more cost-effective laser design that outputs multi-color lasing and offers a step forward in chip-based lasers and miniaturization. The findings could allow encrypted, encoded, redundant and faster information flow in optical fibers, as well as multi-color medical imaging of diseased tissue in real time. The study was published July 10 in Nature Nanotechnology. "In our work, we demonstrated that multi-modal lasing with control over the different colors can be achieved in a single device," said senior author Teri W. Odom, a Charles E. and Emma H. Morrison Professor of Chemistry in the Weinberg College of Arts and Sciences at Northwestern. "Compared to traditional lasers, our work is unprecedented for its stable mul...

671nm 500mW~900mW High power Red DPSS Laser with TTL Modulation and power supply   [Features] Miniature size Collimated straight beam Easy use & maintenance free Longlife operation High efficiency High reliability   [Specifications] Product Name: 671nm 500mW~900mW Red DPSS Laser Laser Shape: Circular, aspect ratio<1.1:1 Lead Time: 1~3 weeks,  Custom product available! Output Wavelength: 671nm Output Power: 500mW~900mW (Choose) Spatial mode: TEM00 Operating mode: CW or Modulation Modulation:  Analog or TTL modulation 0~30Khz Linewidth: <1 nm Polarization: 100:1 Pointing Stability: <0.05 mrad Beam Diameter(1/e2): 2 mm Divergence Angle: 1.0 mrad Power Stability:  <±5% per 4 hrs Light High: 25mm Temperature Stabilizing: TEC Warm Up Time: <5 minutes Beam quality(M2): <1.2 Optimum Operating Temperature: 20~30℃ Storage Temperature: 10~50℃ MTTF(mean time to failure): 10,000 hrs L...