A high-performance single-mode multifiber connector using oblique and direct endface contact between multiple fibers arranged in a plastic ferrule

Yokoyama, Y.; Ashiya, F.; Satake, T.

doi:10.1109/68.93269

Cited by 39 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7) within the worst estimated misalignment. The standard deviation of insertion loss, 0.16 dB, achieved by our alignment technique is better than the 0.34 dB reported in [24] and comparable to the 0.12 dB achieved in [25]. The literature [25] describes a single mode fiber to single mode fiber MT connector so the repeatability of our alignment technique is comparable with that achieved in single mode fiber MT connectors.…”

Section: Repeatabilitysupporting

confidence: 60%

Low-Cost, Precision, Self-Alignment Technique for Coupling Laser and Photodiode Arrays to Polymer Waveguide Arrays on Multilayer PCBs

Papakonstantinou

Selviah

Pitwon³

et al. 2008

IEEE Trans. Adv. Packag.

View full text Add to dashboard Cite

Abstract-The first, to our knowledge, passive, precision, selfalignment technique for direct coupling of vertical cavity surface emitting laser (VCSEL) and photodiode (PD) arrays to an array of polymer buried channel waveguides on a rigid printed circuit board (PCB) is reported. It gives insertion losses as good as the best achieved previously, to within experimental measurement accuracy, but without the need for costly active alignment nor waveguide facet polishing and so is a major step towards a commercially realizable low cost connector. Such an optical connector with four duplex channels each operating at 10 Gb/s (80 Gb/s aggregate) was designed, constructed, and its alignment precision assessed. The alignment technique is applicable to polymer waveguide interconnections on both rigid and flexible multilayer printed circuit boards (PCBs). The dependence of optical coupling loss on misalignments in , and of the VCSEL and PD arrays allows the precision of alignment to be assessed and its reproducibility on multiple mating cycles of the connector is reported. The first recorded measurements of crosstalk between waveguides when the connector is misaligned are reported. Lateral misalignments of the connector to within its tolerance are shown to have no effect on the signal to crosstalk ratio (SCR), to within experimental measurement accuracy. The insertion loss repeatability is similar to that of single mode fiber mechanically transferable (MT) connectors.

show abstract

Section: Repeatabilitysupporting

confidence: 60%

Low-Cost, Precision, Self-Alignment Technique for Coupling Laser and Photodiode Arrays to Polymer Waveguide Arrays on Multilayer PCBs

Papakonstantinou

Selviah

Pitwon³

et al. 2008

IEEE Trans. Adv. Packag.

View full text Add to dashboard Cite

show abstract

“…Connectors and adaptors are very needed to perform the optical network operation. Some researchers have done experiments about connector (Suzuki et al, 1986;Satake et al, 1986;Nagasawa et al, 1991;Iwano et al, 1992;Young et al, 1989;Parzygnat, 1987;Sankawa et al, 1986). There are four typical contact type of connectors.…”

Section: Methodsmentioning

confidence: 99%

“…They are perpendicular and oblique endface connectors employing either physical contact or contact via index matching material. The oblique endface connector is very effecti to reduce the reflection (Suzuki et al, 1986;Nagasawa et al, 1991;Young et al, 1989). The physical contact type connector has also been analysis to improve the return loss.…”

Section: Methodsmentioning

confidence: 99%

The Influences of Connectors and Adaptors to Fiber-To-The-Home Network Performance

Ab-Rahman¹,

Mastang

Jumari

2012

American Journal of Applied Sciences

View full text Add to dashboard Cite

Problem statement:The reliability of the entire communications network was dependent on the reliability of each single element. Connector was important devices that can affect the performance of the fiber communication. There were a large number of issues that affect the performance of fiber optic connectors in today's networks. These factors were increasingly as data rates, the number of wavelengths and transmission distances continue to escalate. Approach: Therefore this study was carried out to test on the influence of connectors and adapters to the performance of the optical network. Initially the actual attenuation of connector and adaptor were tested by using multifunction loss tester. The first two 1 m corning optical fibers with a connector at each end are measured. Then, both the 1 m corning optical fibers were joined together by an adaptor and connected to the Multifunction loss tester. Three types of wavelength are used as the source to test the attenuation of the fiber which is 1310, 1490-1550 nm. In order to measure the Bit Error Rate (BER) and the power loss in optical fiber communication, a simple simulation was carried out by using software opti sys. Results: The attenuation on the connector was caused mainly by existence of impurities in the connector, less perfect connection, scattering of beam and others. These causes the parameter such as power received, Q-factor, minimum BER and also the eye-height to change. Changes in these parameters also affect the performance at the user end. It was very critical that causes of attenuation to be eliminated. Conclusion/Recommendations: From the result it can be concluded that, the greater the attenuation, the greater the decrease in power received. It also affects the Q-factor of the system where as the attenuation increase, the maximum Q-factor decreases. As for the minimum BER, minimum BER changes as the attenuation increase initially, after a maximum value it decreases as the attenuation increases.

show abstract

“…5͑b͒, an oblique angle of 8 to 10 deg to the contact surface will minimize the return loss during connection. 6,7,9,10 The reflected light will decay in the cladding and will not interfere with the incoming light. 3.…”

Section: Solid Model Constructionsmentioning

confidence: 99%

“…Although the precision can be controlled, misalignment may still occur owing to the contact stress on the connecting interface. 4,5 In addition, contact surface modifications as a result of optical considerations [6][7][8][9][10][11][12][13] will significantly affect the stress and strain after load is applied.…”

Section: Introductionmentioning

confidence: 99%

Optimum design for the contact surface of multifiber optical connectors

Lin¹

2007

Opt. Eng

View full text Add to dashboard Cite

The core diameter of a single-mode fiber is about 8 to 10m. Any slight misalignment or deformation of the optical mechanism will cause significant optical losses at connections. Previous studies have concentrated on improving the manufacturing process to obtain highprecision components. Although the precision can be controlled, misalignment may still occur owing to the contact stress on the connecting interface. This study used the finite-element method to simulate the contact status, and used MT-series connectors as examples. The connectors use a guide-pin structure to align the two contact surfaces, and use a spring or clip to maintain tight contact. Because the MT ferrules are made of plastic materials, they are softer than ceramic ones and the deformation strains are more significant. For the finite-element analysis, a solid model of the MT ferrule with a convex end, oblique angle, and fiber protrusion can be constructed according to the JIS C5981 standard. Results of a simulation, integrating the optimization technique and AN-SYS software, showed that the fiber center displacement for the commonly used oblique PC connectors would be 0.9 m. This will significantly affect the eccentricity tolerances for single-mode applications, because a maximum of 1.5 m is acceptable. Using the resulting new standard ͑eccentricity Ͻ0.6 m͒ to select ferrules, and making them into connectors, it is found that the insertion losses in 98% of connectors are less than 0.3 dB. This result satisfies the requirement for single-mode applications.

show abstract

A high-performance single-mode multifiber connector using oblique and direct endface contact between multiple fibers arranged in a plastic ferrule

Cited by 39 publications

References 1 publication

Low-Cost, Precision, Self-Alignment Technique for Coupling Laser and Photodiode Arrays to Polymer Waveguide Arrays on Multilayer PCBs

Low-Cost, Precision, Self-Alignment Technique for Coupling Laser and Photodiode Arrays to Polymer Waveguide Arrays on Multilayer PCBs

The Influences of Connectors and Adaptors to Fiber-To-The-Home Network Performance

Optimum design for the contact surface of multifiber optical connectors

Contact Info

Product

Resources

About