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
Features | Application | Packaging | ||
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. |
| housings, and packagings for a wide range of applications. Please refer to the specification sheet. |
Specification | Premium | Standard |
Wavelength | 800 .. 1620nm | 1280 .. 1340nm; 1520 ..1620nm |
Reflectivity | 5 .. 99.99% | |
FWHM | 50GHz / 100GHz / 200GHz spacing or custom | |
Pass band | > +/- 0.12 nm | |
Insertion loss* | <0.1 dB * | |
PDL | <0.2 dB | |
SNR adj. channel | >25 dB | >20 dB |
SNR non-adj. channel | >30 dB | >25 dB |
Termination | Bare fiber, FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA | |
Packaging | 3mm standard tube, 9mm athermal, boxed | |
Operating Temperature | 0° .. 70° | |
*if radiation mode suppressed fiber is used |
Spectral and Delay characteristics (50 GHz spacing) |
Tunable FBG
Wavelength locking FBG
Features | Application | Packaging | ||
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). |
|
Specification | Premium | Standard |
Center wavelength (CW) | 800 .. 1620nm | 980nm; 1480nm; 1280 .. 1340nm; 1520 ..1620nm |
Reflectivity | 3 .. 50% (typical) | |
FWHM | 0.08 .. 1.5 nm | |
Insertion loss | <0.2 dB | |
Proof test | <100 kpsi (SM fiber) <50 kpsi (PM fiber) | |
Minimum bending diameter | 25 mm | |
Termination | Bare fiber, FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA | |
Operating Temperature | 5°C .. 120°C | |
Examples | |
Peak locker FBG at 851.3 nm: | Flank locker FBG at 193.4 GHz: |
Ultra Narrow-band Optical Transmission Filter
Application | Features | Packaging | ||
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.
|
The Ultra narrow transmission filter allows to select signals with a narrow bandwidth, while reliably blocking any other spectral components. | Available as silver or black box |
Specification | Premium | Standard |
Wavelength | 1525 .. 1610 nm | |
Line width (FWHM) | 0.005 .. 0.040 nm 0.5 .. 5.0 GHz | |
SNR | 55 dB | 35 dB |
PDL | <0.2 dB | |
Insertion loss | <2.9 dB (*) | <2.0 dB (*) |
Stability @ 10° .. 45°C | +/- 2.5 pm | |
Operating Temperature | 10° .. 45° (custom upon request) | |
Termination | FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA (3mm buffered fiber lead-outs upon request) | |
Packaging | Table top box (19" modular system) | |
Max. input power | 500 mW (2 W upon request) | |
(*) The IL might be higher at an FWHM that is smaller than 0.008nm (1 GHz) |
Spectrum example / Dimensions | |
The transmission line with an FWHM of 1 Ghz. The filter does not provide a reflected signal. | Dimensions of a Ultra narrow-band transmission filter |
Broad Band Filter FBG
Features | Application | Packaging | ||
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. |
| Due to their extended physical length, Broad Band FBGs require often a larger packaging than normal FBGs. |
Specification | Premium | Standard |
Wavelength | 800 .. 1620nm | 1535 ..1565nm |
Reflectivity | 5 .. 99.9% | |
FWHM | 2 .. 70 nm | |
Insertion loss | <0.15 dB (*) | |
Termination | Bare fiber, FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA | |
Packaging | 3mm standard tube (lengths are varying), boxed | |
*On the FBG's lower wavelength side, ther might be a significant higher IL due to radiation mode issues. |
Spectral characteristics (Example) |
Phase shifted FBG
Features | Application | Packaging | ||
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. |
| Phase shifted FBGs can also be applied to tuning or temperature stabilizing setups. |
Specification | Premium | Standard |
Wavelength | 800 .. 1620nm | 1280 .. 1340nm; 1520 ..1620nm |
Reflectivity | 50 .. 99.9% (*) | |
FWHM | custom | |
Transmission bandwidth (FWHM) | ~ 0.005 .. ~ 0.100 nm (*) | |
Termination | Bare fiber, FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA, E2000 | |
Packaging | 3mm standard tube, 9mm athermal, boxed, tunable | |
* Note: Higher values of reflectivity scale roughly with a narrower bandwidth of pass band. |
Spectral characteristics (Examples) | |
Athermalisation for FBG's
Features | Application | Packaging | ||
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. |
|
Specification | Premium | Standard |
Thermal dependency | < 0.7 pm/K, non-linear | < 1.5 pm/K, non-linear |
Fibertype | Single mode, 250/125 µm | |
Packaging | dia. 6.3 mm; length 55 mm (± 2mm) | |
Operating Temperature | 0° .. 70° C | |
Thermal characteristics |
FBG Sensors
技术能力
Wavelength Reference
Features | Application | Packaging | ||
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. |
| Actively stabilized FBGs in various hou- sings. OEM solutions are also available. |
Specification | Premium | Standard |
Wavelength | 800 .. 1620nm | 1280 .. 1340nm; 1520 ..1620nm |
Reflectivity | 5 .. 99.99% | |
FWHM | custom | |
Stability | +/- 1 pm | +/- 1.5 pm |
Operating Temperature | 5° .. 45° (custom on request) | |
Insertion loss* | <0.1 dB * | |
PDL | <0.2 dB | |
Termination | FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA | |
Packaging | 19" housing | |
*if radiation mode suppressed fiber is used |
Dimensions / Spectrum example | |
Dimensions of a table top calibrator FBG | The narrow transmission pit of a phase shifted FBG can be used as calibration transmission line |
Multi Wavelength Reference
Features | Application | Packaging | ||
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. |
| Actively stabilized FBGs in various hou- sings. OEM solutions are also available. |
Specification | Premium | Standard |
Wavelength | 800 .. 1620nm | 1280 .. 1340nm; 1520 ..1620nm |
Number of FBG's | 2 .. 5 | |
Reflectivity | 5 .. 99.99% | |
FWHM | custom | |
Stability | < +/- 2 pm | |
Operating Temperature | 5° .. 45° (custom on request) | |
Insertion loss* | <0.1 dB * | |
PDL | <0.2 dB | |
Termination | FC/PC, FC/APC, ST, SC/PC, SC/APC, DIN, SMA | |
Packaging | 19" housing | |
*if radiation mode suppressed fiber is used |
Dimensions / Spectrum example | |
Dimensions of a table top calibrator FBG | The multiline - calibrator can be used as broad band reference |