Transcript Corporate Presentation: Aerospace/Defense
MKT-GAB-002-EN Rev. 1.2
Lasers Commerciaux de TeraXion: de la simple diode laser aux lasers étroits et stabilisés les plus performants C. Latrasse
14 mai 2010
ETS, Montréal
Outline
Company Profile
Product Lines
Laser-based Products
– Narrow Linewidth Laser – Applications for Narrow Linewidth Laser – Frequency Stabilized Laser: ALMA Master Laser
Conclusion
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 3
Company Profile
Design
and
manufacturing
of optical components, modules and solutions for
Telecom, Industrial/Energy and Defense/Aerospace
markets, Private company backed by
FTQ, Caisse de dépôt, Fondaction and Accès-Capital
Founded in
April 2000: 10th anniversary celebrated yesterday !!
EBITDA positive since 2005
(
profitable since 2007
)
Employees: ~125
(scientific staff: 60, 25 M.Sc. and Ph.D.) Headquarters: Québec City, Canada Facilities:
32,000 ft 2
(owns 18 000 ft 2 )
Telcordia
GR-1209, 1221 and 468 products
ISO-9001:2000
registered (June 2005) December 2002: IP acquisition of March 2005: Acquisition of :
beginning of laser activities at TeraXion
Comply with Canadian Controlled Goods Program
(CGP)
and
ITAR The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 4
Product Lines
Static and Tunable Chromatic Dispersion Compensation (10, 40, 100 Gb/s, Submarine terminals) High-Power Reflectors & Temporal Pulse Shaping of Fiber Lasers) Market Leadership for Tunable Dispersion Compensation Market Leadership for Fiber Laser Reflectors The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 5
Narrow Linewidth and Frequency-Stabilized Semiconductor Lasers) Niche Markets
Laser-based Products
TeraXion is involved in the development of high performance laser sources since 2005: Telecom DFB laser diode High performance driving electronics + Linewidth Reduction System (using FBG) + PureSpectrum Narrow Linewidth Laser PureSpectrum Laser Module Interferometry, gyroscopes, RF generation The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010
Wind sensing LIDAR
6
+ Frequency Stabilization to Molecular / Atomic Line PureSpectrum -Frequency Stabilized Laser Fiber sensing ALMA Master Laser ALMA radio telescope
Narrow Linewidth Laser using electrical feedback
Why perform linewidth reduction:
– DFB semiconductor lasers developed for telecommunications systems are interesting sources: high power, low RIN, efficient, robust, reliable.
– For some applications, their linewidth is too high: linewidth reduction is necessary ;
Principle:
– Using a frequency discriminator, the laser frequency fluctuations are converted into intensity fluctuations. – Adequate correction is applied to the laser injection current to reduce the frequency fluctuations, thus, its linewidth.
– The frequency discriminator is a narrow p -phase shifted Fiber Bragg Grating developped at TeraXion.
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 7
Results with the Current NLL Product
•
Power spectral density of frequency noise (PSDFN)
•
Optical spectrum (calculated from PSDFN) Reduction by a 4-order of magnitude at low Fourier frequencies The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 8
Reduction of FWHM linewidth from several 365 kHz to <5 kHz
Application of narrow-linewidth lasers
Free-space interferometric sensing Hard target detection Fiber optic interferometric sensing 4C-OBS (Ocean Bottom Seismic) Fiber optic distributed sensing Perimeter security / Structure Health Monitoring Fiber optic rotation sensing Fiber Optic Gyroscopes RF Generation RF Photonics Doppler shift
position and speed Laser frequency fluctuations have to be smaller than the measured Doppler shift Phase change due to environment provides information Small laser phase noise (PSDFN) is required, high PSDFN can be interpreted as phase change Frequency shift / strength of Brillouin BS
T° and strain Laser bandwidth has to be small enough to resolve the Brillouin backscattering spectrum Sagnac effect in fiber loop creates phase change
rotation speed Narrow laser linewidth for locking to the resonance patterns in a R-FOG RF signal produced by beating offset frequency phase locked lasers Low laser phase noise improves the RF spectral purity The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 9
Frequency-stabilized Laser for the Atacama Large Millimeter Array (ALMA)
66 antennae located on the Chajnantor plain of the Chilean Andes (5000 m). The site offers dry and clear sky required to operate at mm and sub-mm
l
. The wavelengths covered by ALMA range from 0.3 mm to 3.6 mm
– - this range is essential for probing the first stars and galaxies, directly imaging the disks in which planets are formed, and probing the energy output from active supermassive black holes in extremely luminous starburst galaxies.
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 10
Master Laser for the ALMA radiotelescope
Provide a highly stable and coherent optical signal that can be carried by fibers to the antennae:
– 2002: First contact between NRAO team and DiCOS Technologies: • No commercial laser available to meet the very demanding specifications.
◊ ◊ ◊ Very high frequency stability: Very high coherence: Demanding environment : < 1.4
10 -11 ( t = 0.1 to 10 s); ≥ 30 km at 50% degree of coherence; 5 to 35°C, half-atmosphere (5000 m elevation); ◊ Lifetime: operational for 30 years; • Only laboratory experiments have proved to meet the frequency stability and coherence specification (such as the one in Michel Tetu laboratory at Laval U. …).
Proposed Solution:
– Use a very narrow linewidth fiber laser at 1.56 um and lock it to a two-photon transition in Rubidium (0.78 um) through second harmonic generation in a PPLN waveguide;
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 11
Performances
Delivery:
– 2 prototypes delivered in 2003-2004: for testing at NRAO site (Virginia).
–
2 fully-tested compact commercial units delivered in 2009:
• All specifications are met range.
(Frequency stability & coherence, RIN, Optical power and PER stability, power consumption, electromagnetic compatibility, vibration/drop tests); • Performances are maintained under half-atmosphere over all temperature • Presently in operation at Chile high site (5000 m).
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 12
Conclusion
Thanks to the invention of the laser, TeraXion can provide laser systems for various applications such as LIDAR, interferometry, RF photonics generation and prestigious projects such as the ALMA radiotelescopes.
Happy Birthday !
The information contained in this document is the sole property of Teraxion and shall not be reproduced in whole or in part, without the written authorization of Teraxion. Copyright
© 2010 13