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波長可調諧濾波器OTF-930是一款偏振無關的80nm可調濾波器。Santec的"Linear Sliding"技術使得在PDL，帶寬和插入損耗等光學特性恒定不變的情況下，進行準確持續的波長調諧。OTF-930能實現非常低的插入損耗。OTF-930利用串聯的形式增加濾波隔離來實現最小的插損增益。OTF-930的十幾款型號基本覆蓋了絕大部分的光纖應用。

• 80nm可調范圍
• 低插入損耗
• 低PDL（＜0.1dB）&PMD（＜0.1ps）覆蓋所有可調范圍
• 0.01nm波長分辨率
• 使用LabView軟件驅動，支持GP-IB
• ASE噪音抑制
• 波長選頻
• 波長可調諧激光器：相干光源

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  應用舉例 光通信收發器信號劣化強度確認

  

  Filter Selections

  Filter type	03			04			06
  Filter structure	S1	S2	S3	S1	S2	S3	S1	S2	S3
  Bandwidth @ -3dB (nm)	0.4±0.1	0.3±0.1	0.25±0.1	0.5±0.1	0.35±0.1	0.3±0.1	0.7±0.1	0.5±0.1	0.4±0.1
  Bandwidth @ -20dB (nm)(Typ.)	<3.8	<1.5	<1.2	<5.0	<1.7	<1.2	<7.5	<2.4	<1.5
  Insertion Loss (dB)	3.5	6	7.5	3	5	6.5	2.5	3	4
  Chromatic dispersion (ps/nm)(Typ.)	23 -19	33.5 -31.5	35 -23	18 -12.5	21.5 -17.5	26 -17	6.5 -6.5	14.5 -11	26.5 -17.5
  Filter type	08			12			24
  Filter structure	S1	S2	S3	S1	S2	S3	S1	S2	S3
  Bandwidth @ -3dB (nm)	0.95±0.1	0.65±0.1	0.5±0.1	1.3±0.1	0.9±0.1	0.7±0.1	2.9±0.3	1.95±0.3	1.5±0.3
  Bandwidth @ -20dB (nm)(Typ.)	< 9.8	< 3.0	< 2.2	< 15.0	< 4.5	< 3.0	<32.0	< 10.0	< 6.5
  Insertion Loss (dB)	2	3	3.5	2	2.5	3	2.5	2.5	2.5
  Chromatic dispersion (ps/nm)(Typ.)	7 -7	8 -5	12 -10.5	3.5 -4	5 -5	8 -5.5	3.5 -3.5	3.5 -3.5	3.5 -3.5
  Filter type	05(1500-1630nm)			12(1270-1350nm)			50
  Filter structure	S1	S2	S3	S1	S2	S3	S1
  Bandwidth @ -3dB (nm)	0.5±0.1	0.35±0.1	0.3±0.1	1.3±0.15	0.9±0.1	0.7±0.1	5.5±1.0
  Bandwidth @ -20dB (nm)	< 5.0	< 1.7	< 1.2	< 15.0	< 4.5	< 3.0	<60(Typ.)
  Insertion Loss (dB)	4.5 *1	6.5 *1	8 *1	3	3.5	4	2.9
  Chromatic dispersion (ps/nm) (typ.)	18 -12.5	21.5 -17.5	26 -17	3.5 -4	5 -5	8 -5.5	– –

  *1: The insertion loss at (1500 – 1530nm) and (1610 – 1630nm) wavelength range may increase by 1dB.

  Category	Parameter	Unit	Spec	Notes
  Wavelength Characteristics	Tuning Range	nm	1530-1610 1500-1630(05 bandwidth) 1270-1350(12 bandwidth)
  	Resolution	nm	0.01	Mechanical resolution
  	Accuracy	nm	<±0.1, <±0.15(24), <±0.2(50)
  	Repeatability	nm	<±0.05, <±0.1(50)	n=50/Measured at center wavelength of slider
  	Temperature Stability	pm/℃	2
  Power Characteristics	PDL(SMF)	dB	0.2	Filter Structure(S2) and (S3)
  	Insertion Loss *1	dB		Refer to “Filter Selections”(Typ.)
  	Return Loss *1	dB	>45
  Power Monitor	Relative Accuracy	dB	<±0.1	Output Power : -20～+10dBm
  Max Rating	Maximum Input Power	dBm	+20	Damage Threshold
  PMD	PMD	ps	<0.1	Design guaranteed performance
  Environmental Conditions	Operating Temperature	℃	20-30
  	Operating Humidity	%	<80 RH	Non condensing
  Interface	Optical Fiber	–	SMF or PMF *2
  	Optical Connector	–	FC or SC
  	Connector Polish	–	SPC or APC	*3
  Power supply	Communication Interface	–	GPIB(IEEE-488) & RS-232C
  	Voltage	V	AC100-240
  	Frequency	Hz	50/60
  Dimensions	Power Consumption	VA	35@230 to 240V 30@100 to 120V
  	W x D x H	mm	210 x 300 x 80
  	Weight	kg	4

  *1:In case of PMF, the insertion loss increases by 1.0dB
  *2:In case of PMF, Polarization extinction ratio 20dB (typical), Polarization axis in alignment with connector key
  *3:SPC = Super Physical Contact, APC = Angled Physical Contact

  Filter Selections

  （-3dB Bandwidth : 0.8 nm to 1.0 nm）

  *Below example does not assures specifications which are not specified in the spec sheet.

  Filter type = 08S1 or 12S2 08S1 -3dB Bandwidth 0.9nm -10dB Bandwidth 2.8nm -20dB Bandwidth 12S2  -3dB Bandwidth 0.9nm -10dB Bandwidth 2.0nm -20dB Bandwidth

  –12 Filter Profile–

  

   

  Chromatic dispersion & group delay [ex:12S21550nm]

  Chromatic dispersion for each wavelength

• 1530nm +4.0ps/nm -4.5ps/nm
• 1550nm +5.0ps/nm -5.0ps/nm

• 波長可調諧濾波器OTF-930