根據不同的需求，該產品根據C&L-band帶寬調節范圍和邊緣陡峭度分為3種版本。其中，超精細調節版本（Ultrafine-Plus）的邊緣陡峭度可達到1000dB/nm?？梢酝ㄟ^遠程控制或觸摸面板實現帶寬及中心波長的設置，內置的功率監控器可以找出濾波帶寬中的峰值功率；支持的控制接口有：GPIB、網口、USB，兼容SCPI標準。OTF-980也可以通過觸摸面板控制。

帶寬可調諧濾波器OTF-980

• 中心波長と透過帯域幅をそれぞれ獨立して変更可能
• 中心波長和帶寬獨立可調諧
• 平頂濾波及高邊緣陡峭度
• Ultrafine-Plus: 0.05-3nm, 1000dB/nm
  　　　　Ultrafine: 0.08-4nm, 500dB/nm
  　　　　Standard: 0.1-15nm, 200dB/nm
• 對應可調諧波長范圍： C&L 波段（85nm）
• 峰值功率搜索功能
• 觸摸面板控制及GPIB/Ethernet/USB遠程控制
• 100Gbp/s, 400Gbp/s 傳輸測試
• DWDM、OFDM通道濾波
• ASE噪聲過濾
• 下一代束波長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 (可選款式)		–	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 可選款式, 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 可選款式, 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.

• 帶寬可調諧濾波器OTF-980