Luna passive optical components series, including the NTC NoTail drop-in coupler
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NTC

NoTail Drop-In Coupler NTC Connectorized Single-Mode Fiber Coupler

Connectorized SMF-28 fiber coupler with no pigtails. It comes in 1x2 or 2x2 form for 1310, 1550 or 1310/1550 nm.

Operating Center Wavelength
1310, 1550, or 1310/1550
Operating Bandwidth
±40 nm
Insertion Loss
See table below
Return Loss
FC/PC connectors: 50 dB, FC/APC connectors: 55 dB
Datasheet

Overview

The NTC NoTail Drop-In Coupler is a connectorized single-mode fiber coupler from the General Photonics passive component line, now part of Luna. It has no fiber pigtails, so it can be inserted directly into an optical system. This avoids handling fragile, loose pigtails.

The optical path delay between input and output is short, about 30 cm. This helps in systems where the optical path balance matters, such as interferometric systems, ultra-short pulse systems and fiber laser systems. Four strong magnets on the back of the housing hold the coupler temporarily but securely on standard optical tables.

The coupler can be ordered for 1310 nm, 1550 nm or dual-window 1310/1550 nm operation, in a 1x2 or 2x2 port configuration. Several coupling ratios are available, with FC/PC, FC/APC, SC/PC or SC/APC connectors. Luna lists the passive component product group as discontinued.

Key Features

  • Wide operating bandwidth
  • Short optical path delay
  • Compact and rugged design
  • Low excess loss
  • High temperature stability
  • No pigtails
  • Magnets for mounting on optical tables

Specifications

Optical
Operating Center Wavelength 1310, 1550, or 1310/1550
Operating Bandwidth ±40 nm
Insertion Loss See table below
Insertion loss table values are referenced without connectors
Return Loss FC/PC connectors: 50 dB, FC/APC connectors: 55 dB
PDL 0.1 dB typical
Thermal Stability 0.1 dB typical
Optical Path Delay ~30 cm
Between input and output
Insertion Loss by Coupling Ratio
50/50, IL (Single Window) < 3.5/3.5
Referenced without connectors
50/50, IL (Dual Windows) < 3.6/3.6
Referenced without connectors
5/95, IL (Single Window) < 14.0/0.45
Referenced without connectors
5/95, IL (Dual Windows) < 14.6/0.4
Referenced without connectors
1/99, IL (Single Window) < 21.5/0.25
Referenced without connectors
1/99, IL (Dual Windows) < 22.5/0.25
Referenced without connectors
General
Fiber Type SMF-28
Port Configuration 1 × 2 or 2 × 2
Storage Temperature -40 to 85 °C
Dimensions 3.5" × 1.5" × 5/8" (L × W × H)

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

  • Power monitoring and sharing
  • CATV
  • Local area networks
  • Optical coherence tomography
  • Laboratory and benchtop setups

Options & Accessories

Option Description
13 Wavelength 1310nm — Ordering code for wavelength
15 Wavelength 1550nm — Ordering code for wavelength
35 Wavelength 1310/1550nm — Ordering code for wavelength
12 Configuration 1x2 — Ordering code for configuration
22 Configuration 2x2 — Ordering code for configuration
xx/yy Coupling Ratio — Coupling ratio, e.g. 10/90
FC/PC, FC/APC, SC/PC, SC/APC Connector Type — Available connector types

Documents & Resources