400-863-9100

Advanced Optical Solutions(美国)

http://www.aos-fiber.com/

地址:
2 West Main Street Suite B1 Uniontown, PA 15401
电话:
724.437.2561
传真:
724.498.0553
产品:
光传感器  光纤  光纤传感器  光纤光学  光纤布拉格光栅  布拉格光栅 

公司简介

Advanced Optics Solution公司成立于1998年,总部位于德国德累斯顿。公司专注于光纤通信和光纤传感领域的光纤布拉格光栅,以及其相关组件的设计和生产。


产品列表

FBG for DWDM Application

FeaturesApplicationPackaging

Fiber Bragg gratings are compo- nents for a wide range of applica- tions in optical communications. The FBGs act there as in-fiber narrow band filters.

Bragg gratings are imprinted into an optical fiber by a holographic process. They can be produced with standard single mode fiber as well as with special fibers, i. e. radiation mode suppressing fiber that is used to reduce the 
cladding mode loss.

  • DWDM technology for 2.5 Gbps and 10 Gbps systems
     

  • ASE filtering 
     

  • Add/Drop-multiplexers for 100GHz and 50GHz channel spacing

AOS provides FBGs with custom filter shapes as well as various FBG connectors,

housings, and packagings for a wide range of applications. Please refer to the specification sheet.

FBG Set


SpecificationPremiumStandard
Wavelength
Reflectivity
FWHM
Pass band
Insertion loss*
PDL
SNR adj. channel
SNR non-adj. channel
Termination
Packaging
Operating Temperature


Spectral and Delay characteristics (50 GHz spacing)
50GHz FBG

 Tunable FBG

 Manually controlled FBG

 PC controlled FBG

 OEM Tunable FBG

Wavelength locking FBG

FeaturesApplicationPackaging

A very common application of FBGs is the stabilization of DFB laser modules. They are applicable to pump lasers for EDFAs 980nm / 1480nm as well as for WDM mo- dules for the 1300nm / 1550nm band.

On demand we are able to pro- duce also wavelength lockers at custom wavelengths like 1064nm or 850nm, down to 800nm at this time, even with PM fiber.
The gratings can be designed for peak locking or for linear flank locking (see examples below).

  • EDFA pump laser wave­length locker
     

  • DFB laser stabilisation for WDM application
     

  • In-fiber resonators for RAMAN fiber lasers
     

  • Tuneable laser modules

The combination of wavelength locking FBGs with tunable setupsor athermal packaging is also available.



FBG Set


SpecificationPremiumStandard
Center wavelength (CW)
Reflectivity
FWHM
Insertion loss
Proof test
Minimum bending diameter
Termination



Operating Temperature


Examples
850nm lockerFlank locker

Ultra Narrow-band Optical Transmission Filter

ApplicationFeaturesPackaging

This device is your perfect choice to filter signals with a very low FWHM, down to 500 MHz in the optical domain. In opposite to standard FBG components, the module does not reflect any signals. Hence it can be used with laser applications without the need of an isolator.
  • Narrow band signal transmission
     

  • Brillouin scatter filtering
     

  • ASE suppression
     

  • Fiber laser mode separation
     

  • Single photon counting / quantum cryptography


  • Tunability +/- 0.24nm
     

  • Active wavelength stabilization
     

  • Cascading of two or more devices for multiple transmission lines
     

  • Extreme noise suppression <50 dB on request
     

  • Outstanding spectral stability
     

The Ultra narrow transmission filter allows to select signals with a narrow bandwidth, while reliably blocking any other spectral components.


Ultra Narrow filter black 
Ultra Narrow filter silver


SpecificationPremiumStandard
Wavelength
Line width (FWHM)
SNR
PDL
Insertion loss
Stability @ 10° .. 45°C
Operating Temperature
Termination
Packaging
Max. input power


Spectrum example / Dimensions
SpectrumDimensions table top

Broad Band Filter FBG

FeaturesApplicationPackaging

Using the technique of "chirped" (linear variation of the period within the FBG structure) Fiber Bragg gratings, we are able to provide FBGs with a very broad bandwidth and with a high rejection.

We can provide a wide range of center wavelengths, bandwidths, and reflectivities.

  • WDM 1300/1550nm band rejection filter
     

  • ASE filtering, noise suppres- sion 
     

  • In-fiber mirrors


Due to their extended physical length, Broad Band FBGs require often a larger packaging than normal FBGs. 
FBG Set


SpecificationPremiumStandard
Wavelength
Reflectivity
FWHM
Insertion loss
Termination
Packaging


Spectral characteristics (Example)
Broad Band FBG

Phase shifted FBG

FeaturesApplicationPackaging

Phase shifted Fiber Bragg gratings show a very narrow transmission band within its reflection bandwidth. Using special structures, even multiple transmission bands are possible.

The phase shifted FBGs can be applied to an athermal setup or a temperature stabilization, as well as to a tuning setup.

  • Highly accurate wavelength references (see Wavelength references)
     

  • ASE filtering 
     

  • Spectroscopy 
     

  • Optical CDMA


Phase shifted FBGs can also be applied to tuning or temperature stabilizing setups.

FBG Set


SpecificationPremiumStandard
Wavelength
Reflectivity
FWHM
Transmission bandwidth (FWHM)
Termination
Packaging



Spectral characteristics (Examples)

Athermalisation for FBG's

FeaturesApplicationPackaging

Fiber Bragg gratings are sensitive against changes of temperature and strain. The temperature caused wavelength shift for an FBG at 1550 nm is about +10 pm/K. (Therefore standard FBGs are also used as temperature sensors see here).

To prevent the gratings from that behaviour, a special package is used. Our patent pending package consist of an assembly of materials with different expansion coefficients which induces a small strain to the FBG, exactly dosed to reduce the wavelength shift to a minimum.

  • FBG's for 50/100/200 GHz DWDM applications
     

  • Wavelength referenced FBG's
     

  • Add/Drop-multiplexers for 100GHz and 50GHz channel spacing
     

  • Laser wavelength stabilising FBG

For an excellence long term stability, the package is epoxy-free and immune against humidity.

Athermal packaging


SpecificationPremiumStandard
Thermal dependency
Fibertype
Packaging
Operating Temperature


Thermal characteristics
Thermal behavior

 FBG Sensors

 Optical strain gauges

 Assembled FBG sensors

 Monitoring systems

 Accessoires


技术能力

Wavelength Reference

FeaturesApplicationPackaging

The wavelength referenced FBG consists of a grating combined with an actively stabilized setup. The encapsulated FGBs provide a very stable and long-term drift-free filter response. During its whole lifetime it shows whether a drift of its center wavelength nor its filter response.

Therefore it is an excellent wave- length reference, very compar- able with the standard gas ab- sorption cells. Our devices can be certified by the 
PTB, a German organization that is comparable to the NIST.

  • Reference channels in DWDM systems
     

  • Wavelength calibrators for component measurement devices
     

  • Reference FBGs for optical sensing systems, especially long-term applications
     

Reference FBGs have been examined during the European CREW project.

Calibrators


SpecificationPremiumStandard
Wavelength
Reflectivity
FWHM
Stability
Operating Temperature
Insertion loss*
PDL
Termination
Packaging


Dimensions / Spectrum example
Dimensions table topPhase shifted

Multi Wavelength Reference

FeaturesApplicationPackaging

This device contains up to 5 cas- caded FBG's that are applied to an actively stabilized setup, performing a multiline - calibrator. In opposite to the standard gas absorption cells only cover an relatively narrow bandwitdh, these multiline references can be designed with a large spectral distance between the lines.

It is an excellent reference for OSAs, FBG monitoring units, and other devices that work with broad band applications. Our devices can be certified by the 
PTB, a German organization that is comparable to the NIST.

  • Reference channels in DWDM systems (channel monitoring)
     

  • Wavelength calibrators for component measurement devices
     

  • Reference FBG - Arrays for optical sensing systems, especially long-term applications that require high accuracy
     

Reference FBGs have been examined during the European CREW project.

Calibrators


SpecificationPremiumStandard
Wavelength
Number of FBG's
Reflectivity
FWHM
Stability
Operating Temperature
Insertion loss*
PDL
Termination
Packaging


Dimensions / Spectrum example
Dimensions table topCalibrator FBG Array


分享到 :