Question 1

What products does Vaeyi Technology offer?

Accepted Answer

We specialize in fiber optic fusion splicers, fiber cleavers, OTDR, PON testers, visual fault locators, and a wide range of FTTH tools and accessories. Our product line covers everything from entry-level to premium professional equipment.

Question 2

How to Resolve High Splice Loss in Optical Fiber Fusion Splicers？

Accepted Answer

High splice loss (or splice failure) is one of the most common issues in fiber optic installation. Resolving this problem requires a systematic troubleshooting approach divided into three categories: Preparation, Machine Calibration, and Hardware Maintenance.

1. Core Troubleshooting Steps
Please troubleshoot in the following order. More than 90% of high loss issues are resolved within the first three steps:







1.Flawless Fiber Preparation & Cleaning：Most Common Culprit。

 	
Strip $ightarrow$ Clean $ightarrow$ Cleave: Always clean the fiber after stripping and before cleaving. Never clean a fiber after it has been cleaved, as this will contaminate the pristine end-face.

 	
Use high-purity Isopropyl Alcohol (IPA >99%) and lint-free wipes. Standard medical alcohol contains too much water and will leave residue.

 	
Clean the V-grooves and LEDs/mirrors: Even microscopic dust in the V-grooves can cause the fiber to sit at an angle, leading to physical misalignment that the camera might not fully correct.









2.Inspect and Adjust the Fiber Cleaver：Defines Splice Quality Limit。

 	
Monitor Cleave Angles: If the splicer screen consistently displays cleave angles $> 1.0^{\circ}$, the cleaver blade is likely dull, dirty, or chipped.

 	
Rotate the Blade: Rotate the cleaver blade to a new, sharp position. If all positions have been used, replace the blade.

 	
Verify Cleave Length: Ensure the strip and cleave lengths comply with your splicer’s specifications (typically 10–16 mm).









3.Perform an Arc Calibration (Arc Test)：Compensates for Environment。

 	
Changes in altitude, humidity, temperature, and atmospheric pressure alter the density of the air, which directly affects the intensity of the electric arc.

 	
Always run an Arc Calibration when changing job sites, experiencing significant temperature shifts, or after replacing electrodes.

 	
Too hot: The fibers melt too quickly and taper. Too cold: The fibers do not fuse completely, leaving a visible seam.









4.Inspect & Replace Electrodes：3,000–5,000 Splice Limit。

 	
Check the electrode tips. If they are blunt, blackened, or covered in silica oxide buildup, the arc will wobble or lose strength.

 	
Run the machine's built-in "Electrode Clean" cycle. If the arc count has exceeded its limit (usually 3,000 to 5,000 splices), replace the electrodes immediately.









5.Verify Splicing Program & Mode：Matching Fiber Profiles。

 	
Ensure the selected splice mode matches the fiber type you are working with (e.g., use SM for Single-Mode, MM for Multi-Mode, or NZDS/BIF for Bend-Insensitive Fiber).

 	
Splicing special fibers using standard SM settings will result in incorrect heat profiles and high actual loss.







 
2. Visual Diagnosis: Troubleshooting via Splicer Screen
Once the fusion cycle completes, look closely at the finished splice on the LCD screen. The visual shape of the joint indicates the specific issue:




Visual Appearance on Screen
Potential Cause
Solution




Bulge / Swelling at Joint
Excessive fiber overlap (Feed/Overlap is too high) or insufficient arc time.

1. Adjust the motor feed/overlap parameter.
 
2. Perform an Arc Calibration.



Necking / Constriction (Thin Joint)
Excessive arc current (too hot) or insufficient motor feed.

1. Reduce arc current/time.
 
2. Increase overlap parameter.
 
3. Perform an Arc Calibration.



Bubbles or Core Distortions
Dirty fiber end-face or a chipped cleave.

1. Improve cleaning technique (use $>99\%$ IPA).
 
2. Check, clean, or rotate the cleaver blade.



Dark Line / Shadow Across Joint

1. Incomplete fusion (under-melted).
 
2. Core eccentricity (mismatched fiber cores).


1. Perform an Arc Calibration to increase arc power.
 
2. Verify if you are using a Core-alignment splicer for mismatched cores.



Offset / Axial Misalignment
Dust/debris in the V-grooves or on the fiber surface preventing proper alignment.
Clean V-grooves and fiber clamp pads thoroughly with a hard-bristled brush or alcohol swab.




💡 Professional Note: Estimated Loss vs. Actual Tested Loss
The loss shown on your splicer screen (e.g., $0.01	ext{ dB}$) is merely a mathematical estimation based on camera images. If there is dust on the camera lenses or mirrors, the machine might miscalculate and display a high loss value even if the physical splice is perfect.
The Gold Standard: Always verify actual insertion loss and return loss using an OTDR (Optical Time Domain Reflectometer) or a Light Source & Power Meter test set.

Question 3

Do you offer OEM/ODM services?

Accepted Answer

Yes, we provide comprehensive OEM/ODM services. We can customize product appearance, branding, packaging, and even firmware to meet your specific requirements. Contact us at sales@vaeyi.com for OEM inquiries.

Question 4

What is the warranty period for your products?

Accepted Answer

All our products come with a standard 12-month warranty from the date of purchase. Extended warranty options are available for selected products. Please contact our sales team for more details.

Question 5

How long does delivery typically take?

Accepted Answer

For in-stock items, we ship within 3-5 business days. For bulk orders or customized products, delivery time is typically 15-30 days depending on order quantity and customization requirements.

Question 6

Which countries do you ship to?

Accepted Answer

We ship worldwide and have customers in over 80 countries. We work with major logistics providers including DHL, FedEx, UPS, and EMS to ensure timely delivery.

Question 7

Do you provide technical support after purchase?

Accepted Answer

Yes, we offer lifetime technical support for all our products. Our support team is available via email, phone, and video call to assist with installation, calibration, and troubleshooting.

Question 8

Can I get a sample before placing a bulk order?

Accepted Answer

Yes, we accept sample orders. Sample pricing may differ from bulk order pricing. Please contact our sales team at sales@vaeyi.com to arrange a sample order.

Question 9

What payment methods do you accept?

Accepted Answer

We accept bank transfer (T/T), PayPal, Western Union, and Alibaba Trade Assurance. For large orders, we also accept L/C (Letter of Credit). Payment terms can be discussed with our sales team.

Visual Appearance on Screen	Potential Cause	Solution
Bulge / Swelling at Joint	Excessive fiber overlap (Feed/Overlap is too high) or insufficient arc time.	1. Adjust the motor feed/overlap parameter. 2. Perform an Arc Calibration.
Necking / Constriction (Thin Joint)	Excessive arc current (too hot) or insufficient motor feed.	1. Reduce arc current/time. 2. Increase overlap parameter. 3. Perform an Arc Calibration.
Bubbles or Core Distortions	Dirty fiber end-face or a chipped cleave.	1. Improve cleaning technique (use $>99\%$ IPA). 2. Check, clean, or rotate the cleaver blade.
Dark Line / Shadow Across Joint	1. Incomplete fusion (under-melted). 2. Core eccentricity (mismatched fiber cores).	1. Perform an Arc Calibration to increase arc power. 2. Verify if you are using a Core-alignment splicer for mismatched cores.
Offset / Axial Misalignment	Dust/debris in the V-grooves or on the fiber surface preventing proper alignment.	Clean V-grooves and fiber clamp pads thoroughly with a hard-bristled brush or alcohol swab.

Frequently Asked Questions

Common Questions

1. Core Troubleshooting Steps

2. Visual Diagnosis: Troubleshooting via Splicer Screen