Main Sector of relevance\IRC classification 9. Measurements and Standards
9.8 Generating environment Cr:ZnSe for tuneable lasers of medium IR-range
Developers’ contact information
SSPA “The Scientific and Practical Materials Research Center of the National Academy of Sciences of Belarus”
19, P. Brovka Str., 220072 Minsk
Summary
A generating environment Cr:ZnSe has been developed to obtain coherent radiation at room temperature.Yields generation of tuneable in the range of 2.0-3.0 μm (αmax=2.6 μm) laser radiation with efficiency up to 73%, and threshold generation less than 0.2 mJ/cm2 by optical injection at a wavelength of ~ 1.8 μm.
Description
A generating environment Cr:ZnSe has been developed to
obtain coherent radiation at room temperature. Yields generation of tuneable in
the range of 2.0-3.0 μm (αmax=2.6 μm) laser radiation with efficiency up to
73%, and threshold generation less than 0.2 mJ/cm2 by optical injection at a
wavelength of ~ 1.8 μm. Passive losses at a wavelength of 2.5 μm are less
than 0.1 cm-1, the quotient of absorption in the maximum of the absorption band
during production can be adjusted in the range of 0-30 cm-1, FOM -
more than 150.
The development is meant for use as a material for active elements of compact
tuneable lasers with optical injection for medicine (neurosurgery, plastic
surgery, ophthalmology, urology), optical communications, spectroscopy and
ecological monitoring of the atmosphere. Provides injection through
semiconductor diode lasers with the maximum band of radiation of about 1.8
μm.
According to technical parameters, the developed generating environment exceeds
best commercial solid-state laser environment of medium IR range
MgF2:Co2+ (1.75-2.25 μm) in terms of efficiency,
radiation resistance and generation coverage range, thus, rivalling best world
prototypes.
Technology type
Technical advantages and economic benefits
According to technical parameters, the developed generating environment exceeds best commercial solid-state laser environment of medium IR range MgF2:Co2+ (1.75-2.25 μm) in terms of efficiency, radiation resistance and generation coverage range, thus, rivalling best world prototypes.
Technology differentiation and uniqueness
Commercial development adoption and organization of serial production of Cr:ZnSe crystals will make it possible to supply research and engineering organizations of Belarus with progressive materials for development of up-to-date laser technologies, it will make it possible to replace imported high-priced prototype materials of foreign production and will create conditions for export.
Context in which technology was identified
VII International Moscow Innovation and Investment Show (Moscow,
February 5-8, 2007). The development was awarded with a Silver Prize and Second
Degree Diploma.
XXII International Congress Exhibition “High technologies, innovations,
investments and contribution to development of research and production system
in Russia” (St. Petersburg, October 1-5, 2007). The development was awarded
with the Organization Committee Diploma as “Best innovative project in the
field of new materials and chemical products”.
Technological keywords
Laser materials, generating environment, zinc selenide, ZnSe, Cr:ZnSe.
Development Stage
Intellectual property rights
Range of applications
The development is meant for use as a material for active elements of compact tuneable lasers with optical injection for medicine (neurosurgery, plastic surgery, ophthalmology, urology), optical communications, spectroscopy and ecological monitoring of the atmosphere.
Classifier Used at the EU Innovation Relay Centres
Preferable Regions
Practical experience
The developed material has been investigated in Germany (Hamburg University), France (Cannes University), Austria (Technical University of Vienna) in the framework of joint international projects, and has received a high rating, supported by publications in leading international magazines.
Environmental impact
None.
Type of collaboration sought
Terms and restrictions
Conditions of development transfer are determined in contractual manner in accordance with the laws of the Republic of Belarus.
Available technical assistance