The DC-200/70-PM-Yb-ROD fiber represents the pinnacle of active double-clad
fibers. The fiber is polarization-maintaining and has an effective area above
2000 µm2. The very large effective area combined with extremely high
pump-absorption of up to 30 dB/m pushes the nonlinear thresholds to a new
regime in fiber optics. The fiber is aimed at high peak-power pulsed amplifiers
and has been shown to handle mega-Watt peak-power levels.
The DC-200/70-PM-Yb-ROD is a rod-type fiber with an outer diameter of 1.7
mm - bridging the DPSS and fiber laser world. The large outer diameter ensures
that the extremely large core will not suffer from bending loss. Moreover,
the fiber is coating free to facilitate thermal management in high-power setups.
Crystal fibre has now released the worlds first polarizing large-mode-area air-clad fiber product. Due to the unique PCF technology, the fiber has a single polarization bandwidth of more than 100 nm around 1 µm while maintaining a single-mode core size of more than 40 µm in diameter. The multimode pump cladding is 200 µm in diameter and supports pump light with an NA of more than 0.55. Due to the polarizing nature of the fiber, it can be operated without any other polarization-controlling elements, enabling very simple systems with high performance.
The fiber is ideal for high peak-power amplification where it can support pulses in the mJ regime with megawatt peak power. Moreover it can be used for single-polarization fiber lasers operating both CW and pulsed.
Aculight Corporation recently demonstrated a record breaking pulse amplifier using Crystal Fibres DC-170-40-Yb fiber. The results are described in the paper "1-mJ energy, 1-MW peak-power, 10-W average-power, spectrally narrow, diffraction-limited pulses from a photonic-crystal fiber amplifier" published in Optics Express.
The amplifier clearly demonstrates the vast potential in the very large mode-field diameters and the high pump absorption achievable in the air-clad fibers.
Get
the paper from Optics Express
Download
DC-170-40-Yb Datasheet
In collaboration with the University of Jena, Crystal Fibre has developed the words first single-polarization single-transverse mode double-clad photonic crystal fiber.
The fiber features an Yb-doped large-mode area core operating in a single transverse mode with an effective area of ~700 µm². The signal core is embedded in a 170 µm multimode pump guide with an NA of 0.62.
The fiber is ideal for high-power single-polarization lasers and amplifiers, which, due to the polarizing features of the fiber, can be operated without any external polarization-selective elements.
The latest addition to Crystal Fibres aeroLASE line of fiber laser subassemblies is introduced with the aeroLASE-20-01-Yb. The 20W fiber laser subassembly is designed for applications like micromachining, low-power welding and marking/engraving. Product highlight include:
- 20 W single-mode output
- Integrated all-fiber solution
- High reliability (no polymer clad)
- Short active fiber
- No active cooling
- Alignment and maintenance free
- Only pump source required
The system is available as a stand-alone unit or in a compact fiber tray for OEM integration. The pump interface is 7 standard 105µm 0.22 NA fibers, which can be spliced directly to the pump sources.
For the third year in a row, Crystal Fibre is honered with the Photonics Circle of Excellence Award - this year for the DC-170-40-Yb active double clad fiber.
Read
more about the DC-170-40-Yb
DC-170-40-Yb
datasheet
To meet the growing demand for easy supercontinuum generation, Crystal Fibre
introduces the FEMTOWHITE 800 supercontinuum device. Supercontinuum
generation has never been easier!
Pump the FEMTOWHITE 800 with a 800 nm femtosecond laser and
enjoy polarized octave-spanning output without the hassle of fiber cleaving
and handling.
The supercontinnum is generated in the 12 cm long dispersion-engineered polarization-maintaining nonlinear PCF, specially optimized for 800-nm-range pumping. The fiber ends are sealed and mounted so that they can be easily cleaned if contaminated, or even repolished if damaged. The fiber is protected by a robust 1 inch metal house, compatible with widely available opto-mechanics. The device is maintenance free, and ideal in laboratories where the equipment is handled by many different users, like university labs and research institutions.
Download
the FEMTOWHITE 800 flyer 
Crystal Fibre releases the worlds first polarizing large mode area fiber for sale. The fiber combines stress rod applied birefringence, large effective mode field area (~ 190 m2) and low loss. It is optimized for single-mode operation in the 650 to 850 nm wavelength range and allows Ti:Sapphire and IR light delivery without nonlinear effects or material damage. Within the polarizing bandwidth the fiber is endlessly single mode.
Crystal Fibre has today (August 2nd) entered an agreement with BlazePhotonics in the UK to acquire the company's assets.
Read
the complete press statement
To give our customers an even better overview of our product range, we have
now made most of our product data-sheets available online. Moreover, we have
introduced a range of new products including a dispersion flattened 1050 nm
fiber and a range of polarization-maintaining large mode area fibers.
Specifications on more than 30 unique products are now available for download.
Check the individual product sections for updates.
Crystal Fibres presentation on Air-clad photonic crystal fibers for high-power single-mode lasers have been granted the PhAST Innovation Award at this years PhAST conference in San Francisco, California, recognizing Crystal Fibres air-clad platform as this years most important photonic technology. The presentation has been judged on the following categories:
- Category Impact
- Functionality
- Life Expectancy Before it’s Replaced with Something Bigger/Better
- Impact on the Optics industry
- Innovation
- Patents/Trademarks
Read
more about our unique air-clad fibers in the products section
Visit
the Phast website
Crystal Fibre and Imperial College have teamed up to create the first continuous-wave all-fiber optical parametric oscillator based on a nonlinear photonic crystal fiber. The all-fiber OPO is a serious alternative to solid state lasers, and features alignemt-free tunable output in a compact reliable format.
More
details at otics.org
Read
the scientific paper in Optics Letters 29, 983
In the category "Photonics in Homeland and National Security", Crystal Fibre will showcase their air clad fibers on the PhAST Innovation Presentations during the CLEO conference in San Francisco, California. Join us for at 40-minute session where we show how our unique air clad fibers can be used to create high power lasers.
Summary of the paper presented:
"In this paper, we have gone through the various aspects of PCFs in relation to high power applications. Compared to conventional polymer-based double-clad fibers, PCFs were found to provide higher numerical apertures, comparable or larger single mode core sizes, shorter lengths due to reduced inner cladding dimensions, similar conversion efficiencies, comparable or improved thermal management due to elimination of polymer-materials. With these features, air-clad photonic crystal fibers stand as strong candidates to allow single mode lasing past the 1kW limit."
PhAST
Innovation Presentations Schedule at the CLEO website
PhAST
Innovation Presentations Schedule at the PhAST website
Download
the paper
At the post deadline session at this years Optical
Fiber Conference, OFC, in Los Angeles, Crystal Fiber and California
Institute of Technology demonstrated the Worlds first air/silica Bragg
fiber. The fiber comprises three concentric air/silica rings confining the
light to a cylindrical hollow core.
This fiber type has the potential to break the current fiber loss limits with
PMD-free guiding in the TE01 mode.
A selected range of Crystal Fibre products are now available
through leading global supplier of advanced technology products Newport
Corporation. Product types available through Newport include double cladding
active fibers, nonlinear fibers, air-guiding fibers and large mode area fibers.
For the second year in a row, Crystal Fibre is honored with the Photonics
Circle of Excellence Award - this time for our world leading AIR-12-1060 airguiding
fiber, designed to transmit around the Nd:YAG wavelength of 1060 nm. The fiber
guides more than 98% of the light in air, and has a loss of less than 40 dB/km.
The 12 µm core can handle power levels several orders of magnitude higher
than conventional solid fibers, making the fiber ideal for high power delivery.
Furthermore, the fiber is virtually bending insensitive, and easily bendable
to a 1 cm radius without additional loss. Finally, the hollow core paves the
way for a range of new applications as the fiber can be filled with liquids,
gasses or particles.
The fiber is available in lengths up to several hundred meters.
Adding to our comprehensive range of dispersion engineered nonlinear fibers,
Crystal Fibre is proud to offer the latest in dispersion flattened nonlinear
telecom fibers. The fibers have near zero slope at 1.55 µm and are available
with both small negative or small positive dispersion to facilitate different
nonlinear effects. The fibers are very well suited for 1.55 µm pumped
supercontinuum generation.
Contact
us for data sheets and more information
Crystal Fibre, COM -
Technical University
of Denmark and Chalmers
University of Technology in Sweden demonstrate a high-performance optical
switch based on photonic crystal fibers filled with liquid crystals. The switch
exhibits an impressive extinction ratio of 80 dB within a temperature window
of less than ½ °C.
Featured on optics.org.
Five new large mode area fibers available. The new fibers have core diameters
of 8 µm, 15 µm, 20 µm, 25 µm and 35 µm respectively,
resulting in mode field areas up to 530 µm2.
The fibers were designed for cleaving and stripping using conventional fiber
tools, and they are available with hermetically sealed ends and FC/PC connectors.
For the connectorized fibers, we can customize the amount of fiber end beam
expansion. Contact
us for data sheets.
The first textbook on photonic crystal fibers written by the founders of
Crystal Fibre is now available through Kluwer
Academic Publishers. The book describes the fundamental properties of
the optical waveguides known under the terms of photonic crystal fibres, microstructured
fibres, or holey fibres. It outlines, how the fibres are designed and fabricated,
and how they are treated from a theoretical and numerical point of view. The
book presents a detailed description of the different classes of photonic
crystal and photonic bandgap fibres, and it broadens out a spectrum of novel
applications and new fibre types
Crystal Fibre and University of Ulm demonstrate a quasi error-free 10Gbit/s
data transmission over a novel type of 50 µm core diameter photonic
crystal fiber with as much as 100m length.
Get
the paper from OpticsExpress
Crystal Fibre and Friedrich-Schiller-University
Jena demonstrate a 260W high power double
cladding fiber laser at the post deadline session at the CLEO
Conference. The output power is scalable to more than 1.2 kW.
More info in this paper from OpticsExpress
Crystal Fibre and Friedrich-Schiller-University
Jena demonstrate a 80W high power double cladding fiber laser.
Get
the paper from OpticsExpress
New double cladding fiber
products available
At this years OFC, Crystal Fibre releases air-guiding fibers as part of our
standard range of fibers. This is the first time air-guiding fibers are made
commercially available
Crystal Fibre demonstrates ultra dispersion flattened nonlinear fiber at
the Post Deadline session at this years OFC conference in Atlanta.
Crystal Fibre demonstrates air-guiding over 345 m at the Post Deadline session at this years OFC conference in Atlanta.
Crystal Fibre is granted the "Photonics Circle of Excellence Award 2002" for the Nonlinear Fiber for Telecommunication Applications
Crystal Fibre demonstrates ultra low PMD fiber at the European Conference on Optical Communication, ECOC, in Copenhage
Guiding Light with Holey Fibers (OE Magazine)
Crystal Fibre introduces the first nonlinear fiber with zero dispersion at 1.55 µm at the OFC exhibition (fibers.org)
Read
announcement at Fibers.org
Product show case: Large mode area fibers from Crystal Fibre (Photonics.com
Crystal Fibre is the front page story of Optics and Lasers Europe
Opening of Crystal Fibre’s new facilities in Birkerød
Crystal Fibre acquires patent licence to crystal fiber desig
"Through a glass beautifuly - A new approach to making optical fibres" (The Economist
Jes Broeng, Thomas Sondergaard, Stig E Barkou, Pablo M Barbeito and Anders
Bjarklev are awarded the EUROPEAN
OPTICS PRIZE 1999 for the paper "Waveguidance
by the photonic bandgap effect in optical fibres"
Official announcement of company establishment (Also available in Danish)
New Products:
aeroLASE-350
DC-200/70-PM-Yb-ROD
DC-200/40-PZ-Yb
