13-Pin Butterfly Package 1dBm 10GB/s EML for 2 km-80 km Transmission DFB Laser

13-Pin Butterfly Package 1dBm 10GB/s EML for 2 km-80 km Transmission DFB Laser

$456.00

10-499 piece
$432.00

500-999 piece
$408.00

≥1000 piece

Min. Order:: 1 piece

Min. Order:: 1 piece

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Basic Info

Supply Ability:	10000 Piece/Pieces per Month
Payment Type:	Western Union,T/T,MoneyGram

Product Description

13-Pin Butterfly Package 1dBm 10GB/s EML For 2 km-80 km Transmission DFB Laser

It is with integral driver IC are designed for 10 Gbits/s DWDM or TDM transmission applications. They integrate a CW laser with an electroabsorptive modulator in the same semiconductor chip . These devices can replace external modulators that are often bulkier, more expensive, and require more drive electronics than the EML. This series use a small-profile Gilbert GPO connector to handle the RF signal. The package also contains a thermoelectric cooler, thermistor, rear-facet monitor photodiode, and an optical isolator.

What is DFB Laser :

DFB stands for distributed feedback laser. Their key features relative to other semiconductor lasers are their single longitudinal mode (single frequency) emission profile, their high stability and their tunability. These single frequency laser diodes are used in applications such as fiber optic telecommunications, spectroscopy, metrology and atomic physics. This sub-category of semiconductor lasers employs Bragg diffraction gratings in the active gain region of the semiconductor to form a waveguide. These diffraction gratings are designed to deliver periodic changes in the refractive index which cause reflection back into the cavity of the laser. Unlike Fabry-Perot laser diodes, which utilize mirrors at both ends of the laser cavity, the reflection of the laser light in a DFB laser is along the entire cavity. DFB semiconductor materials include indium-phosphide and gallium-indium-arsenide-antimony.

ADVANTAGES OF DFB LASERS:

The primary advantage of a DFB laser is that one axial resonator mode prevails over the other modes. This yields a relatively narrow single mode emission peak (single longitudinal mode) at the desired wavelength. Their single mode waveform is particularly desired in applications such as gas sensing and telecommunications. They are inherently more stable than most other laser diode structures, meaning that they don’t mode hop. Mode hopping is a disadvantage of Fabry-Perot lasers. DFB's can typically be tuned by temperature and injection current over several nanometers from their center wavelength. As a general rule, a DFB can be tuned around one nanometer with a ten degree temperature shift. This feature, combined with their narrow linewidth, makes DFB’s particularly desirable for sensing applications which require tuning the wavelength and a narrow linewidth to locate a gas absorption line. DBR and Discrete Mode lasers are also used for these applications. There are several manufacturers of discrete mode (DM) lasers that offer single mode performance at a more competitive price. DBR's tend to be more expensive than DFB's.

TYPICAL SPECIFICATIONS
Output Wavelength: 1550 nm Fiber Output Power: 1 dBm (Peak) SC/PC Fiber Connector Laser Forward Current: 100 mA (max) Extinction Ratio: 10 dB (min) Input Voltage 1 V Peak-to-Peak (Max) Refer to Datasheet for Additional Specifications


PULSE SPECIFICATIONS
Pulse Optical Power: 60 mW (Iop = 450 mW) Rise and Fall Times: 80 ps (typ; 120 ps max, see datasheet) Capacitance (PD): 10 pF Pulse Mode: Pulse Duration 10 μs, Duty Cycle = 1%
ELECTRICAL SPECIFICATIONS - CW MODE
Threshold Current: 8 mA (typ) Operating Current: 100 mA (typ, CW, P = 20 mW, SM1 Fiber) Operating Voltage: 1.4 V (typ, CW, P = 20 mW) Slope Efficiency: 0.2 mW/mA (CW) Monitoring Output Current (PD): 1.7 mA
INTERNAL TEC SPECIFICATIONS
Max Operating Current: 0.7 A Max Operating Voltage: 3.9 V Heat Pump Capacity: 1.4 Watt (max) Max Delta T: 72 K Thermistor: 10k Ω
OUTPUT FIBER SPECIFICATIONS
G.657.A1, Furcation Tubing 0.9 mm FC/APC Connector Other Fiber and Connector Types Available; Inquire

Product Description

DFB's offer several key differentiating features relative to other types of semiconductor lasers. These features include their single frequency emission profile, their high stability and their ability to be tuned to adjacent wavelengths. These single frequency lasers employ Bragg diffraction gratings (mirrors) in their active gain region to form a waveguide. Unlike Fabry-Perot lasers, which utilize mirrors at both ends of the laser cavity, the reflection of the laser light in a DFB laser is along the entire cavity. This design principle allows them to deliver their single mode beam profile. DFB semiconductor materials include indium-phosphide and gallium-indium-arsenide-antimony.

Application:

Telecommunications:

* SONET/SDH applications

* Ultrahigh capacity WDM system application

* Extended and ultra-long reach

* Undersea systemsn

* Digital video