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光貿易: Optoplex Reconfigurable Optical Add/Drop Multiplexer ROADM  
メーカー Optoplex     【オプトプレックス】
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製品名 :Optoplex Reconfigurable Optical Add/Drop Multiplexer
 ROADM
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カテゴリー WDM / CWDM / DWDM
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DPSK / DQPSK関連 Demodulator 復調器 90°ハイブリッド LN変調器 バランスドディテクタ
 
光貿易/下枠


製品概要/Product Overview
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Optical differential-phase shift keying (DPSK) provides a desired modulation format that offers high receiver sensitivity, high tolerance to major nonlinear effects in high-speed transmissions, and high tolerance to coherent crosstalk. In DPSK, data information is carried by the optical phase difference between adjacent bits. For direct detection of DPSK signal (by conventional intensity detectors), a DPSK demodulator is needed to convert the phase-coded signal into an intensity-coded signal.

Optoplex's Optical DPSK Demodulator, also known as Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2.5, 10 or 40 Gb/s. The DPSK Demodulator is designed for phase modulated optical communication systems utilized in commercial, defense and space exploration markets. The DPSK device plays a key role in improving signal quality and performance to meet the expanding demand for higher data rates and more complex transmission formats within current and next generation systems without major capital expenditure. Optoplex's DPSK Demodulator is based on a patented free-space optical design, which is compact, athermal and polarization-independent. The measured frequency drift over temperature is only ~0.02 GHz/°C for our standard passive device.

Further, this DPSK Demodulator exhibits a total polarization-dependent phase shift of less than 2 degrees over the entire operating temperature range with a high extinction ratio. Optoplex's DPSK Demodulators can be configured to be fully tunable, semi-tunable or purely passive. Dual-Rate DPSK Demodulator is also available.

Parameter
Unit
50
100 GHz
Wavelength Tuning Range
nm
C-band: 1528 〜 1562
L-band: 1567 〜 1603
Wavelength Tuning Resolution
THz
〜 10 pm or Calibrated to ITU grids
Passband Width 1 @ 0.5 dB
GHz
-
>30
Passband Width1 @ 1.0 dB
GHz
>16
-
Passband Width1 @ 3.0 dB
GHz
25 (Typical)
50 (Typical)
Passband Width1 @ 20 dB
GHz
< 85
-
Passband Width1 @ 25 dB
GHz
-
<150
Peak Insertion Loss1 (without connector)
dB
<4.0
<2.7
Polarization Dependent Loss 1
dB
<0.3 within CW±5GHz
<0.4 within CW±10GHz
Polarization Mode Dispersion
ps
0.5
0.3
Chromatic Dispersion 1
ps/nm
<± 50 within CW ±5GHz
<± 25 within CW ±12GHz
Wavelength Setting Error 2
GHz
<±4
Wavelength Repeatability2
GHz
±1
Wavelength Temperature Dependence
pm/°C
<± 1 (Typical)
Return Loss
dB
> 40
Maximum Input Optical Power
mW
300
Tuning Speed (channel to channel, depending on originating and destination channels)
sec
<10
5 〜 10
Tuning Power Consumption
mW
<1800 (Peak)
<300 (Idle)
Tuning Voltage
V
5 (DC)
Electronic Interface
mW
RS232
Operating Temperature
0 to 65
Storage Temperature
-40 to 85
Dimension (L x W x H) 3
mm
84 x 61 x 16
Notes:
1. Only typical values are listed. Optoplex can provide devices with FSR ranging from 2.5 to 160 GHz.
2. Over the stated spectral and operating temperature ranges and all polarization states.
3. Defined as the time required to reach half-way from the starting and ending points.
4. Excluding two collimator sleeves extending out from the two adjacent sides by 21 mm with diameter of 8 mm.
5. Excluding two collimator sleeves extending out from one shorter side by 17 mm with diameter of 6.3 mm.


Typical Performance of ROADM:
光貿易: Optoplex Reconfigurable Optical Add/Drop Multiplexer ROADM

光貿易: Optoplex Reconfigurable Optical Add/Drop Multiplexer ROADM
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光貿易: Optoplex Reconfigurable Optical Add/Drop Multiplexer ROADM
PDFファイル: 72 kb

特徴/Key Features
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- Athermal design
- C+L band coverage by a single device
- Low temperature-dependent frequency shift (TDFS)
- Low polarization-dependent frequency shift (PDFS)
- Wide bandwidth
- Low insertion loss & PDL
- High power handling
- Passive, semi-tunable and fully tunable operation
- Suitable for both RZ and NRZ modulation format
- Telcordia GR-1221 qualified

 

アプリケーション/Application
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- 2.5, 10, 20 or 40 Gb/s commercial DPSK signal reception
- Customized data rate for advanced applications
- Data rate optimization
- Extend transmission distance

 


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