レーザ製品は、目などの損傷を引き起こす可能性に基づいてクラス分けされています。 国際電気標準会議(The International Electrotechnical Commission 「IEC」)は、電気、電子工学技術関連分野の国際規格の策定及び普及を行う国際機関で、 IEC60825-1はレーザ製品の安全性を規定するIEC規格です(対応するJIS規格はJIS C 6802)。レーザ製品のクラス分けは下記の通りです:
L462P1400MM has been discontinued, what is the replacement product?
YLohia
 (posted 2019-11-18 11:12:58.0)
Thank you for contacting Thorlabs. The closest alternative to this item is the L450P1600MM.
Steve Russell
 (posted 2019-11-15 14:08:06.383)
Can you tell me what the electrical frequency response of this particular laser diode is? I never see this spec in any laser spec sheet of any type.
YLohia
 (posted 2019-11-20 11:19:56.0)
Hello, thank you for contacting Thorlabs. Unfortunately, we do not measure this parameter and it is hard to guarantee a certain level of performance as it varies between different pieces. Each diode would have to be individually tested in order to provide an accurate representation of the frequency response. That being said, we expect that the L850P010 can be modulated >100 MHz with the proper drive electronics.
Ana R
 (posted 2019-10-18 17:51:38.667)
Hi,
I have an L785H1 diode that I'm setting up as part of an ECDL. The specifications state that the threshold current should be around 50 mA, but I'm getting just above 25 mA free-running. Is this something to be concerned about?
YLohia
 (posted 2019-10-18 02:49:38.0)
Hello, thank you for contacting Thorlabs. A lower threshold current is not a cause for concern. We specify the typical threshold current to be 50 mA, but we do not specify a lower bound as this can vary and is not seen as a defect.
user
 (posted 2019-10-17 09:26:55.633)
Hello, do you provide tolerance data regarding the positioning (x y z & tilt) of these TO-46, TO-56, TO-90 packages ? What should be the most reliable reference surface ? (package cylinder diameter, cylinder front face, support back or front plane ?)
YLohia
 (posted 2019-10-17 11:16:56.0)
Hello, we do not provide this tolerance data as some of the laser diodes on this page are sourced from other manufacturers (these diodes have original manufacturer spec sheets on this page) and these tolerances are not consistent. I will reach out to you directly to discuss your requirements further.
user
 (posted 2019-07-23 04:04:08.233)
What is the lifetime characteristics of laser diode L520G1, particularly MTBF?
YLohia
 (posted 2019-08-07 10:00:19.0)
Hello, thank you for contacting Thorlabs. I have reached out to you directly with this information.
user
 (posted 2019-06-24 03:51:37.793)
Is it possible to order a HL6312G diode with a lasing wavelength known more accurately than the 625 - 640 nm range given by the data sheet ?
YLohia
 (posted 2019-06-24 09:39:17.0)
Hello, thank you for contacting Thorlabs. Unfortunately, these laser diodes are not tested individually for wavelength. You can, however, purchase one of the LPS-635-FC pigtailed diodes, which are individually tested for wavelength and power.
Hello,
I bought L520P50 from Thorlabs. May I know the company which manufactures this diode? I am looking for a diode with TO56 package with a wavelength from 521-575 nm.
Best Regards,
Phani.
Vladimir Makarov
 (posted 2019-05-30 15:28:02.717)
Hello, I am using the PL450B laser diode as a point illumination source. Could you tell me what the length and width of the emission area is? In other words, the size of the area on the facet of the laser where the light is emitted.
YLohia
 (posted 2019-05-30 04:37:22.0)
Hello, the emitter width for this laser diode is 1.5um x 1.0 um.
user
 (posted 2019-04-30 09:57:39.64)
Could you please suggest me a collimation tube for 3.8mm laser diodes like L405P150, PL520 or L638P150 and other 3.8mm Laser diodes?
thanks in advance.
ibrahim
YLohia
 (posted 2019-04-30 09:29:13.0)
Hello Ibrahim, thank you for contacting Thorlabs. Unfortunately, we currently do not offer collimation tubes for 3.8mm package size laser diodes. That being said, you can build your own collimation tube with the
S05LM38 adapter for 3.8mm diodes and using appropriate SM05 lens tubes and aspheric lenses.
About the HL6750, when I look at the manufacturers spec sheet in the link, it appears to be pin code A. But it is listed as pin code C. Could you please check the listing?
mmcclure
 (posted 2018-11-19 10:09:53.0)
Hello, thank you for your inquiry. The pin configuration for the HL6750MG laser diode corresponds to pin code C, as shown in both the manufacturer's spec sheet and the blue "info" icon on the website. Should you have additional questions, our tech support team will happily assist you.
paul.nachman
 (posted 2018-07-11 12:09:32.84)
The drawings you provide in this image ...
https://www.thorlabs.com/images/popupimages/HL8338MG_DWG.gif
... don't label the pin numbers in the pin diagram for comparison with the bottom view.
It's lucky that you make the manufacturer's data available ...
https://www.thorlabs.com/drawings/fd0e8f0902043f28-6AFA1F67-E78D-AFDC-C6C2BB53EE55033C/HL8338MG-MFGSpec.pdf
... else I would have guessed wrong.
YLohia
 (posted 2018-07-12 09:57:42.0)
Hello, thank you for your feedback and bringing this issue to our attention. We are currently working on making all drawings for this item more consistent with each other.
chih.hao.li
 (posted 2018-05-23 08:53:36.27)
Hi We are wondering if there is AR coating on the laser diode front window. If no, how much do you charge for an AR coated laser diode? Thank you!
YLohia
 (posted 2018-05-23 05:07:46.0)
Hello, thank you for contacting Thorlabs. The windows on laser diode cans are almost always AR coated.
user
 (posted 2018-03-12 15:35:01.523)
The PL450B pin connections reported in the Thorlabs selling packages and datasheets are different from the one reported in pag. 7 of the PL450B MFG Spec.
YLohia
 (posted 2018-03-22 08:25:57.0)
Hello, thank you for your feedback. We took a look at this and, while they are labeled differently, the pin connections are still the same. The only thing that is different here is that the arbitrary pin numbers (Pin 1 and Pin 3) are switched in designation.
robert
 (posted 2017-10-11 16:29:34.97)
It should be made clear to prospective buyers that these diodes are exceptionally sensitive to optically feedback. To quote the Thorlabs Tech Support staff "Our engineers that designed this told me that any reflection with more than 2% of the power will kill diode." That is not typical of laser diodes in this wavelength range.
tcampbell
 (posted 2018-03-23 02:17:13.0)
Hello, thank you for contacting Thorlabs. After discussing with our engineers, we have added a warning for select laser diodes on this page. Please feel free to contact us if you have concerns about any other products on our site.
Do you can give me the spectrum of the diode laser DL5146-101S?
THANKS
tfrisch
 (posted 2017-06-30 01:11:14.0)
Hello, thank you for contacting Thorlabs. The spectrum will change because of differences from one production lot to another and because of differences in use, such as operating temperature and drive current. I will reach out to you directly to discuss your application.
dmitry.busko
 (posted 2016-11-16 11:59:52.17)
In a datasheet for M9-940-0200 there is no any information about the LD and PD pin connections.
tfrisch
 (posted 2016-11-22 08:21:01.0)
Hello, thank you for pointing out the missing circuit information. We will correct the spec sheet, but until then, if you are looking at the bottom of laser diode (pins pointing towards you), and the square cutout is down, the left pin is the Photodiode Anode, the center pin ties the Photodiode Cathode to the Laser Diode Anode and the case, and the right pin is the Laser Diode Cathode.
mitch
 (posted 2016-06-18 08:50:58.713)
Hi, I would like to drive the L850P010 fast. Initially I will be using your bias-T and driver, but I plan on designing my own bias-T for 2.4GHz operation. I was wondering if you could provide details on this laser diodes approximate impedance and more importantly it's capacitance? Thanks
besembeson
 (posted 2016-06-22 08:50:15.0)
Response from Bweh at Thorlabs USA: Such high speed modulation will not be suitable with this diode. You may want to consider a VCSEL instead and we don't have one for your application at this time.
pedrueze
 (posted 2016-02-02 13:23:02.757)
Hi all,
I have your profile current and temperature controller "Profile PRO 8000" with a combined module LD/TE controller ITC 8052.
(I can send by email the pics of them.)
I also have a laser diode L9805E2P5, (50 mW, 980 nm, A Pin code).
The problem is that I need to choose an appropiate Temperature Controlled Laser Diode Mount for it.
I was checking the TCLDM9 device. The problem is that the output of the controller is DB-15 (15 pins), and very close to it is the LD output of 9 pins.
It is better understood if you can see the pics.
I need to be sure which are the appropiate cables to connect between my controller and the TE mount, regarding the pin congiguration of my LD,
and if they have enough space to put in the module.
Could you please help me with that?
Thank you very much.
besembeson
 (posted 2016-02-04 10:21:59.0)
Response from Bweh at Thorlabs USA: The cables you would need will be the CAB400 for the laser control and CAB420-15 for the temperature controller. These can be found at the following page: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=966&pn=ITC8052
cmrogers
 (posted 2015-12-07 21:36:29.773)
I am looking for is a diode centered near 656nm, with as a wide a gain bandwidth as possible, for use in an ECDL. What is the gain bandwidth of the relevant diodes that you sell?
Also, are any of your diodes AR coated?
Thanks!
besembeson
 (posted 2015-12-08 10:14:54.0)
Response from Bweh at Thorlabs USA: The Fabry Perot lasers that you would need for your wavelength of interest will typically have optical bandwidth in the 5-10nm range. The high power diode lasers, for example the HL6545MG are AR coated.
pedrueze
 (posted 2015-10-12 11:42:15.523)
Hello. I just recently bought one L9805E2P5 laser diode + a cable SR9A-DB9.
We have a current controller whose pin diagram could be find here:
http://assets.newport.com/webDocuments-EN/images/70041001_LDC-37x4C_IX.PDF
(see please page 17)
As you may see, doesn't match with the pins of the cable, so we must re-wired it.
My concern is which pins should I re-wire. In principle, I wired 3, 5 and 9 to use the laser diode, cathode, anode and ground chassis.
Is this correct/enough to make the laser emitting? should I connect the PD cathode and Anode as well? What is the use of anode/cathode voltage sense pins in the manual?
Concerning the temperature, I will use the laser at low-power (for alignement).
Thanks a lot for your help.
jlow
 (posted 2015-10-12 04:55:23.0)
Response from Jeremy at Thorlabs: At a minimum, you will want to connect Pin2 and Pin7 on the SR9A-DB9 to your controller. If you want to use the internal photodiode for feedback, you will want to connect Pin4 as well. I will contact you directly via e-mail to help with this.
hmagh001
 (posted 2015-05-08 10:53:27.903)
We just bought L808P200 for our lab and it is supposed to have a maximum power of 200 mW, and the spec. file of Laser diodes says that the threshold current is 100 mA. However, when I set the current to 80 mW from the LD controller (bought from thorlab as well, LDC220C) and measure the power with an optical power meter, it shows only 5 mW. I was wondering, how can we reach to higher power numbers with this laser diode.
Thanks,
Hadi.
jlow
 (posted 2015-05-13 11:05:19.0)
Response from Jeremy at Thorlabs: The threshold current is the current needed for the LD to lase. To get to the 200mW power, you would need to drive this near the operating current (somewhere between 220 to 300mA for the L808P200). Please use an optical power meter to measure the output power instead of relying just on the supplied current. Also, the light from the LD is divergent so please make sure your optical power meter will capture all the light from the LD to get an accurate reading.
rssi_2nava
 (posted 2014-11-24 19:25:25.74)
Hello guys,
i was hoping you can tell me the amplitude reflection coefficients of the diode rear and front faces of the L1060P100J laser diode, i can't find them anywhere and i need them to compute the transmision function of the diode cavity. I'll appreciate reading from you soon
Kind Regards
jlow
 (posted 2014-12-11 01:30:49.0)
Response from Jeremy at Thorlabs: The coating information on the chip facet is proprietary and is not something that we can provide.
jimzambuto
 (posted 2014-10-03 11:13:51.5)
For the diode part number L404P400M, what is the extent of the SLOW AAXIS. I am trying to design a collimator and the residual divergence caused by the extent of the laser facet in the slow or multimode direction is very important.
jlow
 (posted 2014-10-13 09:05:41.0)
Response from Jeremy at Thorlabs: You can find the far-field emission pattern/angle on page 3 of the MFG spec sheet in the supporting documents. The direct link is http://www.thorlabs.com/thorcat/QTN/L404P400M-MFGSpec.pdf.
ar_1348
 (posted 2014-04-26 15:03:07.077)
i need a driver for M5-905-0100
cdaly
 (posted 2014-05-08 02:58:52.0)
Response from Chris at Thorlabs: This laser can be mounted in TCLDM9 and driven with LDC202C which can provide 200mA, covering the M5-905-0100's max operating current of 170mA. I'd suggest using a temperature controller as well, such as TED200C.
t.meinert
 (posted 2014-01-08 08:36:55.39)
ask for Quotation:
LD Type: DL 5146-101s
Quantity: 100pcs/a
1000pcs/a
jlow
 (posted 2014-01-08 10:15:34.0)
Response from Jeremy at Thorlabs: We will contact you directly to provide a quote.
この半導体レーザのリードピンの径(および付属のソケットのピン径)はØ0.6 mm で、一般的なØ9 mmパッケージのピン径(Ø0.45 mm)より大きいため、標準的なØ9 mm TO-Can型パッケージに取付け可能なマウント(LDM90/Mなど)やソケットには対応しませんのでご注意ください。なお、この半導体レーザをマウントやドライバとの接続する際のはんだ付け接続用の補助部品として、はんだ付け用のソケットが付属しています(このソケットも上記マウントには対応していません)。
この半導体レーザのリードピンの径(および付属のソケットのピン径)はØ0.6 mm で、一般的なØ9 mmパッケージのピン径(Ø0.45 mm)より大きいため、標準的なØ9 mm TO-Can型パッケージに取付け可能なマウント(LDM90/Mなど)やソケットには対応しませんのでご注意ください。なお、この半導体レーザをマウントやドライバとの接続する際のはんだ付け接続用の補助部品として、はんだ付け用のソケットが付属しています(このソケットも上記マウントには対応していません)。