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Hi I am a little confused with what should be postive and negative in this pin configuration. I tried 1 -> positive and 2 -> Gnd. But I dint see any light at the threshold current and operating voltage. Could anyone help me out on this.

Hi, I have 5.6mm laser diode modules built and I have 0.5 inch laser mounts from thorlabs. There is a gap of approx 1mm between the mount and the module. Since we need extreme rigid and stable setup , we are thinking of to machine cylinderical metallic ring to fill the gap. With a M2x3 screw...

Hello all, Does anyone have any kn0wledge of where I can purchase a laser driver with the following specifications: CW up to 200MHz up to 200mA current control supply voltage range from 3 to 5.5 V So far I have known about only two of them and my bad luck one of them is obsolete. AD9660...

Hello, Below are two figures that show the output from a Laser Driver Board , running pulses at 80Mhz. 1. The power to the board Vdd and gnd is connected via a DC POWER SUPPLY. View image: DC Power Supply 2. The second figure is when the Vdd and gnd is connected via a 5V battery. View...

Hi, I am doing a multi-spectral experiment. I have 4 different 5.6mm lasers : 445nm, 405nm, 638nm, 655nm. The input to these lasers is a pulsed TTL signal running at 80Mhz. I want a pot on the driver so that I can calibrate the current at the output side , so that I can make sure all the 4...

Hello. I am working on a multi-spectral Project, I use 445,405,638,660nm lasers. The input to these laser drivers are pulsed and I was trying to find a laser driver that can be used to amplify the output side by varying resistor values on the driver board ( Potentiometer probably ) ...

Hi, Is there any single transverse mode 405nm laser diode. Power required anywhere within 30-100 mw. I tried on ebay couldn get any which says its single mode. Found two : 1. Sony SLD 323A - No datasheet to verify if it is single mode 2. Sanyo dl7386-101hg - No datasheet to verify if it is...

Hello all, Anyone got the data sheet for dl7386-101hg datasheet from SANYO ?? I want to verify if it is single mode or not to get a fine dot ... Thank you ...

Any one got the datasheet for this diode ? I bought 2 of this at https://sites.google.com/site/dtrlpf/home/diodes/mitsubishi-635nm-110mw-single-mode-diodes ... Since this seller is trusted and hails good reviews from this forum, I believe it is Single Transverse mode. I want the datasheet to...

Hello guys, where can I find laser diode holder with collimation tube for TO-38 type laser diode ?. I have a PL-450B (TO38 ICut Package). Reference ...

Hello, What is the main difference between single longitudinal mode and single transverse mode in laser diodes. Which one among these is known to give a better focusing spot. Thanks, Abhi

Hello All, This is a 658nm 30mW LD. I however want to know if this is a SINGLE_MODE LD ? ... I want to have a very sharp focusing since I am conducting a confocal microscopy experiment. Please do help and suggest any other LD for this wavelength and power below 120mW. :) Thanks and happy new...

Hello, Anyone got the datasheet for the laser diode SLD323A ( SONY 405NM Violet/Blue 50mw Laser Diode ). I tried on the net but never got this one exactly. Just wanted to know if it is single-mode laser diode. Thanks, Abhi

Hello guys, I am a research student, my research is based on Confocal Imaging. Therefore I am quite interested in only single-mode lasers. I tried thorlabs and newport, but the rates seems to be over-rated. Can you guys please suggest me some sites where I can find single-mode diode lasers...

Hello all, For my research I need to mount a laser diode ( 5.6mm ) into a collimation tube ( Thorlabs ). But, I find it very difficult and messy to solder the laser diode socket pins to +ve and -ve terminals of a wire which has a BNC ( F ) at the other end. is there any other way...