|
Products
 What laser diodes do you offer?
How can you confirm quality of your laser diodes?
What is a lifetime of your laser diodes?
How do you test LDs for the lifetime?
Is it possible to vary the output power of the working laser diode?
What is the type of LDD-10 output connector?
What thermistor should be used while working with LDD-10?
What is a microlens? What does it do?
Are your microlens and feedback photodiode removable?
Can you make a customized product matching my specific need?
What are your terms of delivery?
General
What is ATC-SD's main asset that set it apart from other Russian and international competitors?
What is the corporate mission of your company?
PRODUCTS
What laser diodes do you offer?
We manufacture multi-mode laser diodes with CW output optical power of 500 mW - 4 W, which have emission wavelength of 790 - 820 nm or 940.- 980 nm. For details see web page laser diodes and arrays.
How can you confirm high quality of your laser diodes?
ATC-SD's laser diodes are certified by Rosstandard - the highest Russian certifiaction authority. The overall performance of the company is controlled by Quality Management System ISO 9001:2000.
Our laser diodes were captiously tested by many domestic and foreign companies, confirming high quality of our products.
  top
What is a lifetime of your laser diodes?
Specifying the lifetime of our laser diodes as 10,000 hours, we define it as a time period when the output power of a diode decreases by 20% under conditions of constant pumping current (noted as an operating current in the certificate of each LD) and working temperature of +25C.
To determine the expected lifetime of our laser diodes, we carry out three types of testing:
- Accelerated test method under high temperature conditions (+50C) using the acceleration coefficients.
- Testing under normal (+25C) conditions for a limited period of time with linear extrapolation.
- Real time (10,000 hours) testing of limited amount of LDs. This method experimentally affirms the value of the acceleration coefficient used in method (a) and competence of usage linear extrapolation in method (b).
top
How do you test LDs for the lifetime?
Each and every laser diode manufactured by ATC-SD is being tested under normal (25 C) operating conditions for 500 hours. Then the diodes that show expected decrease in output power of more than 20% at 10,000 hours point (see our definition of the lifetime above) are rejected, while the others (expected decrease in output power less than 20% for 10,000 hours) are being placed to stock.
Is it possible to vary the output power of the working laser diode?
You certainly can vary the laser output power by changing the driving current. This can be done by manual rotating of the corresponding knob or typing the current value on the keyboard of the LDD-10 driver, simultaneously observing the current or/and output power on two numeric displays of the driver.
The dependence of the output power from the current is linear. See typical graphs.
top
What is the type of LDD-10 output connector?
LDD-10 has a 1 meter cable as an output, which terminates with RS-19 connector, which fits the ATC cooling heads. We will provide you with contacts map of the connector, if necessary. Besides, we may complete your order of the driver with the complementary part of the connector for free.
What thermistor should be used while working with LDD-10?
Our driver is designed to use thermistor of 10 kOhm+-5% at +25C as a standard temperature sensor. However, it may be easily re-configured by the user (instructions in the Manual) for different Peltier thermocoolers and thermistors. If you can point parameters of TEC and thermistor used by you, we may configure the driver by ourselves before shipping to you.
top
What is a microlens? What does it do?
The laser diode without microlens has a beam divergence of about 40 x 10 degrees at FWHM level. The microlens is an anti-reflection-coated cylinder, which is being mounted after the front mirror of the laser diode. It gives reduction of the beam divergence to 2 x 10 degrees.
Are your microlens and feedback photodiode removable?
Microlens and feedback photodiode are mounted on the open heat-sink together with soldered laser chip, and this joint construction is pressurized into TO-3 or ATC case. Thus they are NOT removable.
Additional collimating or focusing optics is placed onto the TO-3 or ATC case from outside and may be removed easily.
top
Can you make a customized product matching my specific need?
We always try to make advances towards our clients needs. Usually we can change technical parameters of our products to some extent, develop and manufacture some additional focusing or collimating optics according to your requirements, and so on.
If you failed to find standard production fitting your task, please describe in details your application, wavelength and wavelength tolerance required, power, beam characteristics, etc. The more information you give, the more likely we can help you.
What are your terms of delivery?
After your placing an order, we send you an invoice by e-mail or fax, and you make cash in advance payment onto our bank account.
The prices indicated in our price-lists are ex-works (EXW). That is the price if one takes the goods at our premises in St.Petersburg, Russia. To be let out across the Russian border legally, the customs procedures should be executed. This cost about USD 150. At this step delivery conditions are called FCA.
You may read more about EXW, FCA, CIF and other Incoterms here.
So, DHL deliver the devices CIF Your City. Their service cost about USD 70 -150 (for usual weights and destinations of our shipments). After that you should contact your local custom authorities to get to know what procedures and payments is necessary (if any) to actually get the goods.
We send standard devices within one month after receiving the money. Actual time usually is less, depending on availability of devices at our stock.
top
GENERAL
What is ATC-SD's main asset that sets it apart from other Russian and international competitors?
On the Russian market our LDs are the most powerful among the domestic manufacturers and the cheapest among all high power LDs available.
We always use customized approach to satisfy our clients' needs.
What is the corporate mission of your company?
We work in order to laser radiation improves quality of human life at every turn. Thereto we produce the most effective lasers among existing - semiconductor (laser diodes). We currently keep up with laser diode world market development trends as well as laser diode applications selected by ourselves. Having technology and manufacturing facilities for production of laser diodes, systems and devices we strive for permanent being at forefront of modern optoelectronics. We offer ready-to-use systems and devices along with application methods in order to lighten the work of our customers as much as possible. We actively collaborate with our partners for creation of new advanced products and technologies.
top
|
