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带宽可调谐滤波器 OTF-980
OTF-980是一款支持中心波长和带宽独立可调谐的滤波器，对应C&L波段的可调谐范围。采用空间光学设计实现超窄线宽调谐，可以通过精细调节实现想要的波形。
根据不同的需求，该产品根据C&L-band带宽调节范围和边缘陡峭度分为3种版本。其中，超精细调节版本（Ultrafine-Plus）的边缘陡峭度可达到1000dB/nm。可以通过远程控制或触摸面板实现带宽及中心波长的设置，内置的功率监控器可以找出滤波带宽中的峰值功率；支持的控制接口有：GPIB、网口、USB，兼容SCPI标准。OTF-980也可以通过触摸面板控制。
中心波長と透過帯域幅をそれぞれ独立して変更可能
中心波长和带宽独立可调谐
平顶滤波及高边缘陡峭度
Ultrafine-Plus: 0.05-3nm, 1000dB/nm
Ultrafine: 0.08-4nm, 500dB/nm
Standard: 0.1-15nm, 200dB/nm
对应可调谐波长范围： C&L 波段（85nm）
峰值功率搜索功能
触摸面板控制及GPIB/Ethernet/USB远程控制
100Gbp/s, 400Gbp/s 传输测试
DWDM、OFDM通道滤波
ASE噪声过滤
下一代束波长OXC（optical cross-connect）
Category | Parameter | Unit | Standard | Ultrafine | Ultrafine-Plus | |
| Wavelength Characteristics | Wavelength Range | nm | 1525 to 1610 | |||
| Accuracy | nm | ±0.05 (typ.±0.03) | ||||
| Repeatability *1 | nm | ±0.01 (typ.±0.005 *4) | ||||
| Setting Resolution | nm | 0.001 | ||||
| Filter | Bandwidth @-3dB | nm | 0.1 to 15 | 0.08 to 4 | 0.05 to 3 | |
| Accuracy | nm | ±0.05 (typ.±0.03) | ||||
| Repeatability *1 | nm | ±0.01 | ||||
| Setting Resolution | nm | 0.001 | ||||
| Filter slope *2 (typ.) | dB/nm | 200 | 500 | 1000 | ||
| Power Characteristics | Muximum Input Power *3 | dBm | +27 | |||
| Insertion Loss | Bandwidth ≧0.2nm | dB | 5 *5, 6 (typ. 3.5) | 6 *5, 7 (typ. 5) | ||
| Bandwidth <0.2nm | dB | 7 *5, 6 (typ. 5.5) | 8 *5, 7 (typ. 7) | |||
| Crosstalk (typ.) | dB | 50 | ||||
| Polarization Dependent Loss (typ.) | dB | 0.2 | ||||
| Peak Search Function (可选款式) | – | Yes | ||||
| Interface | Communication | – | GP-IB (IEEE488.2), USB & Ethernet | |||
| Display | 5.6 inch resistive touch-screen (res. 640×480) | |||||
| Optical Fiber | SMF | |||||
| Optical Connector | FC or SC | |||||
| Optical Polish | SPC or APC (Angled PC) | |||||
| Environmental Conditions | Operating Temperature | degC | 15 to 35 | |||
| Operating Humidity | % | <80 | ||||
| Power Supply | Voltage | V | AC100～240±10% | |||
| Frequency | Hz | 50/60 | ||||
| Power Consumption | VA | 100 | ||||
| Others | Dimensions (W) x (D) x (H) | mm | 210 x 350 x 133 | |||
| Weight | kg | 8.5 | ||||
*1: Temperature 25±1℃
*2: Between -3 and -40 dB for Bandwidth@-3dB>0.2nm
*3: In case of peak search 可选款式, input power range is available from -30dBm to +20dBm.
*4: When using peak search function, the wavelength repeatability improves to ±0.005nm (typ.).
*5: In case of peak search 可选款式, the insertion loss increases by 0.5dB
*6: The insertion loss at (1525nm – 1530nm) wavelength range may increase by 1dB.
*7: The insertion loss at (1525nm – 1530nm) wavelength range may increase by 0.5dB.
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