News and events

Free technical consultations on crystals

2015 November 24
Tuning your laser source to other wavelengths? Altechna professionals are here to help you evaluate which nonlinear crystal would be best for the required frequency conversion or it’s optimal configuration in respect of available power, beam size, pulse duration or repetition rate.
Want to build second (SHG) or third (THG) harmonic generators, parametric oscillators vs amplifiers (OPO, OPA), sum (SFG) or difference (DFG) frequency generators designed particularly for your laser? We’re ready for a challenge!
Unsure how to best use Raman, photorefractive, electro-optic or need simply birefringent crystals? Learning how the crystals could be used in various laser applications? We can share our experience with you.
Consult Altechna experts about the best way to reach your result before investing into expensive optics. We provide free technical consulting services that can save you time and resources. Get the most effective solutions for various crystal applications, the needed technical information, and appropriate simulations and optimal optical setup advice from the people who have seen it all.
View full service description here.

Educational DPSS Laser Kit

2015 September 21
Altechna presents a compact educational DPSS laser kit designed for learning about the laser setup and experimenting. The kit is designed for academic organizations and research labs to make various education topics easily understandable for a wide range of users.
There are three basic versions of the product available: continuous wave (CW), upgrade with Q-switching (self-pulse formation) QCW operation mode, and upgrade with a possibility to generate 2nd harmonic. Laser kit can be designed and easily adjusted to your lab experiments or education programs on your request. The kit users will have an exclusive opportunity to assemble the laser setup themselves to better understand the work principles and to learn many laser usage related topics better. Such as:
  • Laser diode temperature dependence vs. wavelength
  • Laser diode control specifics
  • Diode pumped solid state (DPSS) laser with passive Q-switch control specifics
  • General optics use with laser beam
  • Beam focusing and collimation
  • Optics alignments
  • Laser resonator control specifics
  • Measurement of laser parameters
  • Nonlinear optics (generating 2nd harmonic)
  • Building your own experimental setup based on laser source
  • Other topics depending on the needs

  • CW or CW/QCW mode (optional)
  • Pro Kit generates the 2nd harmonic
  • Up to 10 W diode power
  • Up to 1.4 W output CW power
  • Up to 11 kHz frequency in QCW
  • Possible wavelengths: 1030nm, 1064nm
  • Beam quality: ~M2 < 1.2
  • Positioned on 1,5 cm high, 30 cm wide and 40 cm long breadboard

For more details please follow the products' link.


Altechna is Establishing Technical Dialogue in LASER World of PHOTONICS 2015

2015 June 22

On 22-25th June the leading Lithuanian laser related products and solution supplier Altechna will be participating in the key international photonics exhibition LASER World of PHOTONICS 2015 in Munich.

Active participation in the LASER World of PHOTONICS exhibition with 27,000 visitors and 1,180 exhibitors is a chance for Altechna to expand the technical dialogue and present its achievements in the field of ultrafast and custom laser optics.

This year is dedicated to Light and Light-Basted technologies highlighting the importance of light and optical technologies in the lives of the citizens and society development worldwide.

Together with ultrafast lasers, laser and nonlinear crystals, Altechna will also demonstrate a brand new compact motorized laser beam attenuator PowerXP, a dependable motorized laser beam attenuator Watt Pilot as well as fixed and zoom beam expanders. These in-house manufactured laser accessories were designed and developed by Altechna production group professionals as a part of new, more focused direction of expanding in-house manufacturing capabilities. The products that have drawn the interest of photonics engineers be will demonstrated within an active laser set up.

Assembling beam expander at Altechna in-house production facilities. ©Altechna photo

For Altechna that has extensive experience in custom laser optics and provides highest quality custom solutions, LASER World of PHOTONICS 2015 is a platform to demonstrate new ways to use lasers in industries such as medicine, science, defense and manufacturing.
Altechna has 19 years of experience in providing laser optics and highest quality custom solutions to the world’s largest manufacturers of femtosecond lasers, academic, and industrial customers.

Altechna has successfully implemented non-standard products, such as:

  • Laser and nonlinear crystals: Ti:Sapphire, Yb:KGW, Yb:KYW
  • Ultrafast optics: low GDD, ultrafast and GTI mirrors
  • Laser accessories: motorized attenuators Watt Pilot and PowerXP, variable beam expanders

Altechna was included on the 2015 Inc. 5000 Europe, Inc.'s ranking of the fastest-growing privately held companies in the European continent. In 2014 Ministry of Economy awards Altechna won in "A solid step in the export markets" nomination.

The investor of Altechna is LitCapital, established in cooperation with European Investment Fund (EIF) under the JEREMIE initiative.


Femtosecond optics

2015 May 12

The market for femtosecond optics has grown over the decades since the introduction of first sub-picosecond lasers in 1990s but it still remains quite small compared to longer pulse or CW lasers and all the optics available for such lasers. Conventional optics and coatings will inevitably end up by either distorting the temporal characteristics of the pulse, being damaged by high peak power of the pulse, or both.

Optical materials possess a specific quality when the phase velocity of light inside the material dependent on the frequency (or wavelength), or equivalently when the group velocity depends on the frequency. This is called chromatic dispersion or group-velocity dispersion (GVD). The latter is measured in units of s²/m or fs²/mm. It’s most convenient to define GVD for optical materials (glasses, fibers etc) in order to evaluate how much your pulse will stretch or compress by using different thickness/length of material. For optical components an alternative measure called the group delay dispersion (GDD) is used. GDD characterizes dispersion for the optical whole component without the need to take thickness/length into consideration.

GDD is usually an unwanted effect because streched ultrashort pulse will lose it’s two main properties: it will no longer be ultrashort and it’s peak power will distribute withint the streched pulse (please refer to figure 1). Usually, the only case where pulse streching is a sought-after effect is in ultrashort pulse amplifiers which streches the pulse, amplifies it and compresses it again.

Schematic representation of ultrashort pulse spreading after a non-GDD compensated optical component is introduced to the setup

Figure 1. Schematic representation of ultrashort pulse spreading after a non-GDD compensated
optical component is introduced to the setup.

To view full version of technical article please download white paper.

Altechna has been working with femtosecond optics since the beginning of the company in 1996 and has shown its expertise by helping its customers tame the sub-picosecond pulses. Here are the features of our key ultrafast laser components

For full range of ultrafast laser products please visit


How our business is done

2015 February 18
Every order starts with a discussion. Altechna engineers not only find out more about the needs of the clients, but also advise them and, if necessary, find new solutions in the market. Since physicists make up as much as one third of the company’s staff, professional solutions are ensured.

The Altechna production process is based on experience, a large network of suppliers, and rigorous quality control. Some of the components are manufactured by Altechna and the remaining ones are ordered from reputable suppliers. Depending on the specifics of the order, we select only the very best suppliers who can offer the highest quality products and services at the right price. This not only keeps the cost of production low, but also allows us to flexibly solve customer problems and produce products of only the highest quality.

More complicated products, such as Watt Pilot attenuators, which consist of numerous parts and require more knowledge and experience to produce, are put together in the Altechna production department.

All production with no exceptions is tested in Altechna's quality control laboratory and only then is delivered to the customer.

A considerable number of successfully implemented complicated non-standard orders speak of our expertise.

You can choose from more than 30,000 products in our catalog. We can also provide you with any customized product based on your requirements. Altechna professionals are custom order experts, effectively delivering the best optical components and solutions; thus, saving your time and efforts for better business development.

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Tradeshows and events

SPIE Photonics West 2016

13-18 February, 2016
The Moscone Center San Francisco, California, United States
Altechna will be participating in 2016 SPIE Photonics West exhibition in San Francisco, USA on 13 - 18 February. We would like to invite you to meet us at stand no. 5262 in North hall D. To arrange scheduled meeting please contact [email protected]

Laser Worlds of Photonics China

March 15-17, 2016
Shanghai New International Expo Center
Altechna will be participating in Laser World of Photonics China exhibition in Shanghai on 15-17 of March, 2016. Visit us at stand 5232.

Advanced Solid State Lasers (ASSL)

04-09 October, 2015
Berlin, Germany
Advanced Solid State Lasers highlights new sources, advanced technologies, components and system design to improve the operation and application of solid state lasers.
Altechna will be exhibiting at booth 203. To arrange a meeting please contact [email protected]
ASSL will be held at the WISTA-Technology Park , Adlershof-Berlin, Germany. More information about the event:

SPIE Security + Defence 2015

21 - 24 September, 2015
Toulouse, France
Join Altechna at the 2015 Security + Defence Exhibition. Meet our team at booth 412. To arrange a meeting please contact [email protected]
Event will be held on 21-24 September at the Centre de Congrès Pierre Baudis, Toulouse, France. More information online:

Laser World of Photonics

22-25 June
Munich, Germany
For your particular needs in laser optics or custom solutions, please meet our experts at Laser World of Photonics and explore our featured products:
  • Laser and nonlinear crystals: Ti:Sapphire, Yb:KGW, Yb:KYW
  • Ultrafast optics: low GDD, ultrafast and GTI mirrors
  • Laser accessories: motorized attenuators Watt Pilot and PowerXP, variable beam expanders
Show will take place on June 22-25 in Munich, Germany. Visit us in hall B3, booth no.405.
To arrange scheduled meeting please contact [email protected]

Event archive