Compact Fixed Time Delay Coils

PD-LD Making compact and low loss fiber coils demands attention, precision and skill. With proprietary manufacturing processes, LD-PD's LP-TDC Compact Time Delay Coils provide extremely low insertion loss while fitting your budget and small spaces. Compact, Rugged Design.No more large fiber spools to occupy your work area and no more high losses associated with small diameter spools! LD-PD's Compact Time Delay Coils fill a void in the Photonics market where large time delays yet small sizes are essential. Each coil is ruggedly packaged to withstand serious handling in field applications.

Name	Model	Description	Parameter	Price
Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L□□□□-XX (Stock NO. Not entered)	Length 10～5000m,Operation Wavelength 1260～1700nm,Fiber Type HI1060 or SMF-28E or PM1550,Connector FC/APC or FC/PC	Length: 10～5000m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us
1000m Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L1000-SA Stock NO.: D80020001	Length 1000m,Operation Wavelength 1260～1700nm,Fiber Type SMF-28E,Connector FC/APC	Length: 1000m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us
208.4m Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L0208.4-SA Stock NO.: D80020007	Length 208.4m,Operation Wavelength 1260～1700nm,Fiber Type SMF-28E,Connector FC/APC	Length: 208.4m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us
103.2m Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L0103.2-SA Stock NO.: D80020003	Length 103.2m,Operation Wavelength 1260～1700nm,Fiber Type SMF-28E,Connector FC/APC	Length: 103.2m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us
24.3m Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L0024.3-SA Stock NO.: D80020008	Length 24.3m,Operation Wavelength 1260～1700nm,Fiber Type SMF-28E,Connector FC/APC	Length: 24.3m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us
11.1m Compact Fixed Time Delay Coils [PDF] [RFQ]	LP-TDC-L0011.1-SA Stock NO.: D80020005	Length 11.1m,Operation Wavelength 1260～1700nm,Fiber Type SMF-28E,Connector FC/APC	Length: 11.1m Operation Wavelength: 1260 - 1700nm Lead Time: in stock	[Please inquire] Call us

Parameter

Features

● Compact size

● Low insertion loss

● Choose your own delay length

● Rugged construction

● Easy to use

Physical/Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit
Length	L	10	500	5000	m
Typical Insertion Loss	IL	0.1	0.2	0.3	dB/km
Operation Wavelength	λ	1260	1500	1700	nm
Operating Temperatature	T	-40	25	85	°C
Fiber Type		HI1060/SMF-28E/PM1550(Optional)
Handling Power	Pf	500	1000	5000	mW
Bobbin Size	Customize
Connector	FC/APC or FC/PC
Type Optical Delay Range	Dependent on fiber length

Notes:

Calculate Required Delay Length To calculate the required fiber length to obtain a specific time delay, use the following formula: L = c Δt / n where c is the speed of light in vacuum, Δt is the desired time delay, and n is the index of refraction of fused silica at the wavelength of interest (use n = 1.4677 at 1310 nm and n = 1.4682 at 1550 )

Dimension

coil1.jpg.png

SMF-28E Fiber Nominal Characteristics and Tolerances

Parameters	Specification
Cut off wavelength	920nm
Max Attenuation	2.1dB/km
Cladding Diameter	125um
Coating Diameter	250um
Core Cladding Concentricity	≤0.5um
Mode Field diameter	9.5um

Absolute Maximum Ratings

Item	Symbol	Unit	Min	Typ	Max	Testing Condition
Axial Pull Force		N	-	-	5N	3x10s
Side Pull Force		N	-	-	2.5N	3x10s
Fiber Bend Radius			16mm			-
Store Temperature	T_STG	℃	-40	-	+85	2000hr
Operating Temperature	T_OP	℃	-55	-	+125
Relative Humidity	RH		5%	-	95%	Noncondensing

Application

● Optical buffer for optical networks

● Gyroscope, sensor and signal processing

● Radar and instrument calibration

● Laser spectroscopic measurement

● Time delay for opto-electronic oscillators

● Nonlinear fiber loop

● Optical network testing and analysis

● Optical packet switching, buffering, routing and input/output synchronization

Ordering Info

LP-TDC-L□□□□-XX

L□□□□：Length

0010: 10m

0100:100m

1000:1000m

XX: Fiber and Connector Type

SN=SMF-28E Fiber + None

SA=SMF-28E Fiber + FC/APC

SP=SMF-28E Fiber + FC/PC

PP=PM Fiber Fiber + FC/PC

PA=PM Fiber Fiber + FC/APC

Compact Fixed Time Delay Coils

Product model

Parameter

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